EP1133509A1

EP1133509A1 - Acetal benzylmaltosides as inhibitors of smooth muscle cell proliferation

Info

Publication number: EP1133509A1
Application number: EP99959083A
Authority: EP
Inventors: Scott Christian Mayer; Paul Jeffrey Dollings; Robert Emmett Mcdevitt
Original assignee: American Home Products Corp
Current assignee: Wyeth LLC
Priority date: 1998-11-24
Filing date: 1999-11-23
Publication date: 2001-09-19
Also published as: JP2002530421A; AU1633000A; BR9915965A; CA2350066A1; WO2000031096A1; CN1328566A

Abstract

This invention provides smooth muscle cell proliferation inhibitors of formula (I), having structure (I), wherein X, R?1, R2, R3, R4, R5, R6, R7, R8 and R9¿ have the meaning given in the claims and description.

Description

ACETAL BENZYLMALTOSD3ES AS INHIBITORS OF SMOOTH MUSCLE CELL PROLIFERATION

BACKGROUND OF THE INVENTION

This invention relates to the use of substituted 4',6'-acetal benzylmaltosides as smooth muscle cell proliferation inhibitors and as therapeutic compositions for treating diseases and conditions which are characterized by excessive smooth muscle proliferation such as restenosis.

All forms of vascular reconstruction such as angioplasty and vein bypass procedures effect a response to injury that ultimately leads to smooth muscle cell (SMC) proliferation and subsequently, deposition of profuse amounts of extracellular matrix (Clowes, A. W.; Reidy, M. A. J. Vase. Surg 1991, 13, 885). These events are also central processes in the pathogenesis of atherosclerosis (Raines E.W.; Ross R. Br. Heart J. 1993, 69 (Supplement), S. 30) as well as transplant arteriosclerosis (Isik, F.F.; McDonald, T. O.; Ferguson, M.: Yamanaka, E.; Gordon Am. J. Pathol. 1992, 141, 1139). In the case of restenosis following angioplasty, clinically relevant solutions for controlling SMC proliferation through pharmacological intervention have remained elusive to date (Herrman, J. P. R.; Hermans, W.R.M.; Vos, J.; Serruys P. W. Drugs 1993, 4, 18 and 249). Any successful approach to selective SMC proliferation inhibition must not interfere with endothelial cell repair or the normal proliferation and function of other cells (Weissberg, P.L.: Grainger, D.J.; Shanahan CM.; Metcalfe, J.C. Cardiovascular w. 1993, 27, 1191).

The glycosaminoglycans heparin and heparan sulfate are endogenous inhibitors of SMC proliferation, yet are able to promote endothelial cell growth (Castellot, J.J. Jr.; Wright, T. C; Karnovsky, M.J. Seminars in Thrombosis and Hemostasis 1987, 13, 489). However, the full clinical benefits of heparin, heparin fragments, chemically modified heparin, low molecular weight heparins, and other heparin mimicking anionic polysaccharides may be compromised due to other pharmacological liabilities (excessive bleeding arising from anticoagulation effects, in particular) coupled with heterogeneity of the various preparations (Borman, S. Chemical and Engineering News, 1993, June 28, 27).

WO 96/14325 discloses acylated benzylglycosides as smooth muscle cell proliferation inhibitors. The compounds of the present invention differ in that the substituents on the carbohydrate backbone are different.

Zehavi, U.; Herchman, M. in Carbohyd. Res. 1986, 151, 371, disclosed 4- carboxy-2-nitrobenzyl 4-O-α-D-glucopyranosyl-β-D-glucopyranoside which is attached to a polymer for study as an acceptor in the glycogen synthase reaction. The compounds of the present invention differ in that the substituents on the benzyl groups are different and the use (smooth muscle antiproliferation) is different.

Patent numbers US 5,498,775, WO96/14324, and US 5,464,827 describe polyanionic benzylglycosides or cyclodextrins as smooth muscle cell proliferation inhibitors for treating diseases and conditions which are characterized by excessive smooth muscle proliferation, β-cyclodextrin tetradecasulfate has been described as a smooth muscle cell proliferation inhibitor and as an effective inhibitor of restenosis (Reilly, C.F.; Fujita, T.; McFall, R. C; Stabilito, I. I.; Wai-se E.; Johnson, R. G. Drug Development Research 1993, 29, 137). US 5019562 discloses anionic derivatives of cyclodextrins for treating pathological conditions associated with undesirable cell or tissue growth. WO 93/09790 discloses antiproliferative polyanionic derivatives of cyclodextrins bearing at least 2 anionic residues per carbohydrate residues. Meinetsberger (EP 312087 A2 and EP 312086 A2) describes the antithrombotic and anticoagulant properties of sulfated bis-aldonic acid amides. US 4431637 discloses polysulfated phenolic glycosides as modulators of the complement system. The compounds of the present invention differ from all of the prior art in that the compounds (a) are benzylglycosylamides which bear no structural resemblance to heparin, sulfated cyclodextrins, or to sulfated lactobionic acid dimers, (b) contain no more than two contiguous sugar residues (disaccharide), (c) are of a defined structure, (d) and are not sulfated. DESCRIPTION OF THE INVENTION

This invention provides benzylmaltosides of formula I

wherein

X is O or S;

R¹ is alkyl of 1-6 carbon atoms, haloalkyl of 1-6 carbon atoms, nitroalkyl of 1-6 carbon atoms, cyanoalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, phenyl mono-, di-, or tri-substituted with R⁸, phenylalkyl of 7-10 carbon atoms, wherein the phenyl ring is mono-, di-, or tri-substituted with

R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸, and thiazolyl substituted with R⁸; R² is hydrogen, acyl of 2-6 carbon atoms, haloacyl of 2-6 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-7 carbon atoms, or trifluoromethylacyl of 3-

8 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

O Q

-to _R10 . " _R&10 ... ^λ^>

R³, R⁴, R⁵, and R⁶ are each, independently, hydrogen, acyl of 2-7 carbon atoms, benzoyl. wherein the phenyl moiety is mono-, di-, or tri-substituted with R⁸, haloacyl of 2-7 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-

7 carbon atoms, or trifluoromethylacyl of 3-8 carbon atoms;

R⁷ is hydrogen, methyl, or phenyl;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, or -CF₃; R⁹ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, -NHR³, -NR³R³, -NR³R¹⁴, -NHCO₂R¹⁴, -NHSO₂R¹⁴,

R¹⁰, R¹¹, and R¹², are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂. halogen, -CF₃, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, or -CF₃;

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen. -CF₃, or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen; R¹⁴ is alkyl of 1-6 carbon atoms; R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO₂R¹⁶;

R¹⁶ is alkyl of 1-6 carbon atoms, benzyl, phenyl, or fluorenyl; n = 0-3; or a pharmaceutically acceptable salt thereof.

Nlkyl includes both straight chain as well as branched moieties. Halogen means bromine, chlorine, fluorine, and iodine. When a compound of this invention contains a group that contains the same moiety more than once (i.e., when R⁹ is -ΝR³R³), each of the moieties may be the same or different.

Pharmaceutically acceptable salts can be formed from organic and inorganic acids, for example, acetic, propionic, lactic, citric, tartaric, succinic, fumaric, maleic, malonic, mandelic, malic, phthalic, hydrochloric, hydrobromic, phosphoric, nitric, sulfuric, methanesulfonic, napthalenesulfonic, benzenesulfonic, toluenesulfonic, camphorsulfonic, and similarly known acceptable acids. Salts may also be formed from organic and inorganic bases, preferably alkali metal salts, for example, sodium, lithium, or potassium. Acid addition salts can be prepared when Y is nitrogen or the compound of formula I contains a basic nitrogen, and base addition salts can typically be prepared when the compound of formula I contains a hydroxyl group.

The compounds of this invention may contain an asymmetric carbon atom and some of the compounds of this invention may contain one or more asymmetric centers and may thus give rise to optical isomers and diastereomers. While shown without respect to stereochemistry in Formula I, the present invention includes such optical isomers and diastereomers; as well as the racemic and resolved, enantiomerically pure R and S stereoisomers; as well as other mixtures of the R and S stereoisomers and pharmaceutically acceptable salts thereof.

Preferred compounds of this invention are benzylmaltosides of formula I |

wherein X is O or S;

R¹ is alkyl of 1-6 carbon atoms, haloalkyl of 1-6 carbon atoms, nitroalkyl of 1-6 carbon atoms, cyanoalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, phenyl mono-, di-, or tri-substituted with R⁸, phenylaikyl of 7-10 carbon atoms, wherein the phenyl ring is mono-, di-, or tri-substituted with R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸, and thiazolyl substituted with R⁸; R² is hydrogen, acyl of 2-6 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

R³, R⁴, R⁵, and R⁶ are each, independently, hydrogen, or acyl of 2-7 carbon atoms; R⁷ is hydrogen, methyl, or phenyl;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, or -CF₃; R⁹ is hydrogen. -NO₂, halogen. -CF₃, -NHR³, -NR R³, -NR R¹⁴, -NHCO₂R¹⁴, -NHSO₂R¹⁴,

R¹⁰, R¹¹, and R¹², are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, or -CF₃;

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen* -CF₃, or phenyl group, wherein the phenyl moiety is optionally mono-, di-. or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen; R¹⁴ is alkyl of 1-6 carbon atoms;

R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO₂R¹⁶;

R¹⁶ is alkyl of 1-6 carbon atoms, benzyl, phenyl, or fluorenyl; n = 0-3; P = 0-6; or a pharmaceutically acceptable salt thereof. More preferred compounds of this invention are benzylmaltosides of formula I

wherein X is O;

R¹ is alkyl of 1-6 carbon atoms, haloalkyl of 1-6 carbon atoms, nitroalkyl of 1-6 carbon atoms, cyanoalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, phenyl mono-, di-, or tri-substituted with R⁸, phenylalkyl of 7-10 carbon atoms, wherein the phenyl ring is mono-, di-, or tri-substituted with R⁸, or pyridyl substituted with R⁸;

R² is hydrogen, acyl of 2-6 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

R³, R⁴, R⁵, and R⁶ are each, independently, hydrogen, or acyl of 2-7 carbon atoms; R⁷ is hydrogen;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, -CN, or halogen; R⁹ is hydrogen, -NO₂, halogen, -CF₃, -NHR³, -NR R³, -NR R¹⁴, -NHCO₂R¹⁴,

-NHSO R¹⁴,

R¹⁰, R¹¹, and R¹², are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO , halogen, or -CF₃;

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, halogen, or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen;

R¹⁴ is alkyl of 1-6 carbon atoms;

R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO₂R¹⁶;

R¹⁶ is alkyl of 1-6 carbon atoms, or fluorenyl; n = 0-3;

P = 0-6; or a pharmaceutically acceptable salt thereof.

Specifically preferred compounds of this invention are: N-{2-Chloro-5-[(4',6'-O-ethylidene)-β-D-maltosyloxymethyl]-phenyl}-acetamide or a pharmaceutically acceptable salt thereof; (R)-N-[5-[[[6-O-Benzoyl-4-O-(4,6-O-ethylidene-α-D-glucopyranosyl)-β-D- glucopyranosyl]oxy]methyl]-2-chlorophenyl]acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[2,3-di-O-acetyl-6-O-benzoyl-4-O-(2,3-di-O-acetyl-4,6-O- ethylidene-α-D-glucopyranosyl)-β-D-glucopyranosyl]oxy]methyl] phenyl] acetamide or a pharmaceutically acceptable salt thereof;

N-{2-Chloro-5-[(4',6'-O-propylidene-β-D-maltosyl)-oxy-methyl]-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-propylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}- acetamide or a pharmaceutically acceptable salt thereof;

N-(5-{ [4',6'-O-Benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosyl]-oxy-methyl}-2- chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

N- (5- { [2,3 ,2 ' ,3 ' -Tetra- O-acetyl-4' ,6 ' - O-benzylidene-6- O- (4-toluenesulf onyl)- β-D- maltosyl]-oxy-methyl}-2-chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenylj-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzyl-4',6'-O-ethylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- acetamide or a pharmaceutically acceptable salt thereof;

N-(2-Chloro-5-{ [4^",6'-O-(4-nitro)-benzylidene-β-D-maltosyl]-oxy-methyl}-phenyl)- acetamide or a pharmaceutically acceptable salt thereof; N-(5-{ [6-O-Benzoyl-4',6'-O-(4-nitro)-benzylidene-β-D-maltosyl]-oxy-methyl}-2- chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

N-{2-Chloro-5-[(4',6'-O-(4-chloro)-benzylidene-β-D-maltosyl)-oxy-methyl]- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-(4-chloro)-benzylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

N-{2-Chloro-5-[(4\6'-O-isobutylidene-β-D-maltosyl)-oxy-methyl]-phenyl}- acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-isobutylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}- acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-((lR)-2-Phenyl-ethylidene)-β-D-maltosyloxy)-methyl]-2-chloro- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-((lR)-2-phenyl-ethylidene)-β-D-maltosyloxy)-methyl]- 2-chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{2-Chloro-5-[(4',6'-O-((lR)-3-cyano-propylidene)-β-D-maltosyloxy)-methyl]- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-{ [6-O-Benzoyl-4',6'-O-((lR)-3-cyanopropylidene)-β-D-maltosyloxy]-methyl}- 2-chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

N-{2-Chloro-5-[(4',6'-O-((lR)-3-ethoxy-propylidene)-β-D-maltosyloxy)-methyl]- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-{ [6-O-Benzoyl-4',6'-O-((lR)-3-ethoxypropylidene)-β-D-maltosyloxy]-methyl}- 2-chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof; N-(2-Chloro-5-{ [4',6'-O-(4-pyridinemethylidene)-β-D-maltosyl]-oxy-methyl}- phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

Benzoic acid 6-(3-acetylamino-4-chloro-benzoyloxy)-3-(7,8-dihydroxy-2-pyridin-4- yl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro-pyran-2- ylmethyl ester or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-2,2',3,3',6-penta-O-acetyl-β-D-maltosyl-oxy)-methyl]-2- chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl-oxy)-methyl]-2-chloro- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[2,3-di-O-acetyl-6-O-benzoyl-4-O-[2,3-di-O-acetyl-4,6-O- (phenylmethylene)-α-D-glucopyranoysl] - β-glucopyranosyl] -oxy] methyl] - phenyl] acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[6-O-(5-methoxy-l,5-dioxopentyl)-4-O-[4,6-O- (phenylmethylene)-α-D-glucopyranoysl]-β-D-glucopyranosyl]oxy]methyl]- phenyl] acetamide or a pharmaceutically acceptable salt thereof;

4-Chloro-3-nitro-benzyl-4',6'-O-benyzlidene-β-D-maltoside or a pharmaceutically acceptable salt thereof;

4-Chloro-3-nitro-benzyl-6-O-benzoyl-4',6'-O-benyzlidene-β-D-maltoside or a pharmaceutically acceptable salt thereof; (R)-(4-Chloro-3-nitrophenyl)methyl-2,3-di-O-acetyl-6-O-benzoyl-4-O-[2,3-di-O- acetyl-4,6-O-(phenylmethylene)- -D-glucopyranosyl]-β-D-glucopyranoside or a pharmaceutically acceptable salt thereof;

Nicotinic acid 6-(4-chloro-3-nitro-benzyloxy)-3-(7,8-dihydroxy-2-phenyl-hexahydro- pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

(R)-(4-Chloro-3-nitrophenyl)methyl 4-[2,3-di-O-acetyl-4.6-O-(phenylmethylene)-α- D-glucopyranosyl]-β-D-glucopyranoside 2,3-diacetate 6-(3-pyridinecarboxylate) or a pharmaceutically acceptable salt thereof;

4-Methoxy-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro- pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

4-Methoxy-benzoic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- diacetoxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-tetrahydro-pyran- 2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

4-Chloro-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro- pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

4-Chloro-benzoic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- diacetoxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-tetrahydro-pyran- 2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[6-O -(4-chloro-3-nitrobenzoyl)-4-O-[4,6O-(phenylmethylene)- α-D-glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]phenyl]acetamide or a pharmaceutically acceptable salt thereof; N-{5-[(2,2',3,-Tri-O -Acetyl-6-O -(4-chloro-3-nitrobenzoyl)-4',6'-O-(benzylidene)- β-D-maltosyl)-oxymethyl]-2-chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[6- O -(4-cyanobenzoyl)-4-O-[4,6O-(phenylmethylene)-α-D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]phenyl]acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[6-O -(4-nitrobenzoyl)-4-O-[4,6O-(phenylmethylene)-α-D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]phenyl]acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[6-O -(3-trifluoromethylbenzoyl)-4-O-[4,6O- (phenylmethylene)-α-D-glucopyranosyl]-β-D-glucopyranosyl]oxy]- methyl]phenyl]acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-6-O-(2-iodo)-benzoyl-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-6-O-(3-iodo)-benzoyl-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-6-(4-iodo-benzoyl)-oxy-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[-2-Chloro-5-[[[6-O-(phenylacetyl)-4-O-[4,6-O-(phenylmethylene)-α-D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]phenyl] acetamide or a pharmaceutically acceptable salt thereof;

(R)-N-[2-Chloro-5-[[[2,3-di-O-acetyl-4-O-[2,3-di-O-acetyl-4,6-O-(phenyl- methylene)-α-D-glucopyranosyl]-6-O-(phenylacetyl)-β-D-glucopyranosyl]- oxy]methyl]phenyl]acetamide or a pharmaceutically acceptable salt thereof; N-{5-[(4',6'-O-Benzylidene-6-O-phenyl-ethyl-carboxyl-β-D-maltosyl)-oxy-methyl]- 2-chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-6-O-phenyl-propyl-carboxyl-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

Diphenyl- acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro- pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

Diphenyl-acetic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- diacetoxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-tetrahydro-pyran- 2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

(3,4-Dimethoxy-phenyl)-acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- dihydroxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy- tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

(3,4-Dimethoxy-phenyl)-acetic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro- benzyloxy)-3- (7 , 8-diacetoxy-2-phenyl-hexahydro-pyrano [3 ,2-d] [ 1 ,3] dioxin-6-yloxy)- tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

Nicotinic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2-phenyl- hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro-pyran-2- ylmethyl ester or a pharmaceutically acceptable salt thereof;

Nicotinic acid 4.5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-diacetoxy- 2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof; (R)-N-[5-[[[6-O-(4-Benzoylbenzoyl)-4-O-[4,6-O-(phenylmethylene)-α-D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]-2-chlorophenyl]acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-β-maltosyl)-oxy-methyl]-2-methyl-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

N-Acetyl-{5-[(2,2',3,3',6-penta-O-acetyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy- methyl]-2-methyl-phenyl} acetamide or a pharmaceutically acceptable salt thereof;

N-(5-{ [4',6'-O-Benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosyl]-oxy-methyl}-2- methyl-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-6-O-phenyl-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl} -acetamide or a pharmaceutically acceptable salt thereof ;

(R)-N-[2-Chloro-5-[[[4-O-[4',6'-Ο-(phenylmethylene)-α-D-glucopyranosyl]-β-D- glucopyranosyl]oxy]methyl] phenyl] -3-pyridinecarboxamide or a pharmaceutically acceptable salt thereof;

(R)-N-[5-[[[6-O-Benzoyl-4-O-[4',6'-O-(phenylmethylene)- -D-glucopyranosyl]-β-D- glucopyranosyl]oxy]methyl]-2-chlorophenyl]-3-pyridinecarboxamide or a pharmaceutically acceptable salt thereof;

Furan-2-carboxylic acid {5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl } -amide or a pharmaceutically acceptable salt thereof;

Furan-2-carboxylic acid {5-[(6-O-benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-amide or a pharmaceutically acceptable salt thereof;

N-{2-Chloro-5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-phenyl}-pent-4- enamide or a pharmaceutically acceptable salt thereof; N-{2-Chloro-5-[(6-O-benzoyl-4',6'-O-benzilidene-β-D-maltosyl)-oxy-methyl]- phenyl}-pent-4-enamide or a pharmaceutically acceptable salt thereof;

5-(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl-2-chloro- phenylamine or a pharmaceutically acceptable salt thereof;

(4-Chloro)-benzyl-4',6'-O-benzylidene-β-D-maltoside or a pharmaceutically acceptable salt thereof;

Benzoic acid l-( -(4-chloro)-benzyl-4',6'-O-benzylidene-6-deoxy-β-D-malto-6-yl ester or a pharmaceutically acceptable salt thereof;

4-Benzoyl-N-{5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- benzamide or a pharmaceutically acceptable salt thereof;

4-Benzoyl-N-{5-[(6-benzoyl-oxy-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl} -benzoic acid amide or a pharmaceutically acceptable salt thereof;

4-Benzoyl-N-{5-[(4',6'-O-benzylidene-6-O-(2-iodo)-benzoyl-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-benzamide or a pharmaceutically acceptable salt thereof;

4-Benzoyl-N-{5-[(4',6'-O-benzylidene-6-O-(3-iodo-benzoyl)-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-benzamide or a pharmaceutically acceptable salt thereof;

4-Benzoyl-N-{5-[(4',6'-O-benzylidene-6-(4-iodo-benzoyl)-oxy-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-benzoic acid amide or a pharmaceutically acceptable salt thereof;

(l-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl- carbamoyl}ethyl)-carbamic acid 9H-ffuoren-9ylmethyl ester or a pharmaceutically acceptable salt thereof; N-(9H-Fluoren-9ylmethoxycarbonyl)-N'-{5-[(6-O-benzoyl-4',6'-O-benzylidene-β-D- maltosyl)-oxy-methyl]-2-chloro-phenyl}-L-alaninamide or a pharmaceutically acceptable salt thereof;

N'-{5-[(6-O-benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}-L-alaninamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxymethyl]-2-chloro-phenyl}-N-methyl- acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxymethyl]-2-chloro- phenyl}-N-methyl-acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-carbamic acid methyl ester or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}-carbamic acid methyl ester or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-(3-Benzyl-l-oxo-propyl)-4',6'-O-benzylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-carbamic acid methyl ester or a pharmaceutically acceptable salt thereof;

N-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- methanesulfonamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4^*.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-cyano- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

N-{5-[(6-O-Benzoyl-4^',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-methyl- phenyl} -acetamide or a pharmaceutically acceptable salt thereof; 6-[-6-(4-Chloro-3-nitro-benzylsulfanyl)-4,5-dihydroxy-2-hydroxymethyl-tetrahydro- pyran-3-yloxy]-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxine-7,8-diol or a pharmaceutically acceptable salt thereof;

(4-Chloro-3-nitro-benzyl) 6-O-benzoyl-4',6'-O- benzoyl-4',6',-O-benzylidene-l- thio-β-D-maltoside or a pharmaceutically acceptable salt thereof.

The compounds of this invention were be prepared according to the following schemes from commercially available starting materials or starting materials which can be prepared using literature procedures. This scheme shows the preparation of representative compounds of this invention.

Ncetobromomaltose 1 is coupled with a benzyl alcohol 2 in the presence of a catalyst such as a mercuric bromide, mercuric cyanide, silver triflate, or silver perchlorate in an aprotic solvent such as acetonitrile, dichloromethane, ether, toluene or nitromethane at temperatures ranging from -40 °C to reflux to yield glycoside 3 (Scheme 1). This glycosidation can also be accomplished using Schmidt's trichloroacetimidate coupling with zinc bromide in a solvent such as dichloromethane. Reduction of the nitro group of 3 can be accomplished with a reducing agent such as stannous chloride in a polar aprotic solvent such as ethyl acetate at ambient temperature to reflux to afford an anilino compound 4. Coupling of 4 with an acid chloride can be completed in the presence of an amine base such as triethylamine or diisopropylethylamine or using a stronger base such as sodium hydride (for sterically hindered systems) in an aprotic solvent such as dichloromethane or tetrahydrofuran at temperatures ranging from 0 °C to ambient temperature to yield the target compound 5. The peracetylated compound 5 can be converted to the heptahydroxy compound 6 with catalytic sodium methoxide in methanol or aqueous sodium hydroxide in methanol at temperatures ranging from ambient temperature to reflux. As illustrated in Scheme 2, an acetal (7) was formed at the C-4', 6' positions of the disaccharide of heptahydroxy compound 6 using an appropriate aldehyde dimethyl or diethyl acetal and an acid source such as /?-toluenesulfonic acid monohydrate or camphorsulfonic acid in a polar solvent such as N,N- dimethylformamide at 60 °C. In difficult cases, an aldehyde and sulfuric acid can be used in DMF at higher temperatures to obtain the product acetal. At this point, the 6- position primary alcohol was selectively acylated using an acid chloride in a 1:1 mixture of tetrahydrofuran and the hindered base 2,4,6-collidine at -40 °C initially to ambient temperature overnight to generate compound 8. The remaining four secondary alcohols of the disaccharide can then be protected with acetic anhydride and triethylamine in a solvent such as dichloromethane to afford the peracetylated compound 9.

On the other hand, acetal 7 can first be converted to a tosylate using tosyl chloride and pyridine in a solvent such as dichloromethane (Scheme 3); the resulting intermediate is then peracetylated as mentioned above to generate compound 10. Through overall displacement of the 6-ρosition tosylate (alcohol formation with sodium formate followed by ether formation with benzyl 2,2,2-trichloroacetimidate), an ether linkage is incorporated at this site on the molecule. The benzylidene acetal is then removed under strongly acidic conditions such as 1M ethereal HC1 to afford compound 11. N new acetal is then formed at the C-4', 6' positions using the conditions mentioned previously or just an aldehyde and the acid source in benzene at elevated temperature (60 °C). Finally, the four secondary acetates are removed with catalytic sodium methoxide in methanol or aqueous sodium hydroxide in methanol at temperatures ranging from ambient temperature to reflux to obtain the hydroxy compound 12. Scheme 1

If R₂ = Bz, then:

Scheme 2

Bn, then:

The compounds of this invention are useful as antiproliferative agents. The following procedures show the evaluation of representative compounds of this invention in standard pharmacological test procedure which measured ability of the evaluated compound to inhibit smooth muscle cell proliferation.

Effects of Compounds on Cell Proliferation Using ³H Thymidine Incorporation Human and porcine smooth muscle cells were tested in early passage (generally passage 3 - 7) at sub-confluent conditions. Cultures were grown in 16 mm (24 well) multi-well culture dishes in medium 199 supplemented with 10% fetal bovine serum and 2% antibiotic / antimycotic. At sub-confluence, the cells were placed in a defined serum free medium (AIM-V; Gibco) for 24 - 48 h prior to initiating the experimental protocol.

Although compounds were found to be more effective with longer pre-incubations, in general, the procedures were initiated with the addition of compound, ³H thymidine and serum / growth factor to serum deprived synchronized cells and results are reported accordingly.

Compounds were added to each well at 50 fold dilution (20 μL / well) and the plates were incubated for 24 - 36 h at 37 °C in 5% CO₂. Compounds were initially dissolved in 50% ethanol and serially diluted into media. Compounds were routinely evaluated at concentrations from 1 to 100 μM. As a control, grade II porcine intestinal mucosal heparin (sodium salt) was routinely evaluated in all cell preparations at concentrations from 0.1 to 100 μg/mL.

At the completion of the test procedure, plates were placed on ice, washed three times with ice cold phosphate buffered saline (PBS) and incubated in ice cold 10% trichloroacetic acid (TCA) got 30 min to remove acid soluble proteins. Solution was transferred to scintillation vials containing 0.4 N HC1 (500 μL/ vial to neutralize

NaOH) and each well was rinsed two times with water (500 μL) for a total volume of

2 mL / vial.

Data was obtained, in triplicate, for both control and experimental samples. Control (100%) data was obtained from maximally stimulated cells, as the result of growth factor or serum stimulation. Experimental data was obtained from cells maximally stimulated with growth factor or serum and treated with compound. Data are expressed as an IC₅₀ or percent inhibition in Table I below.

Table 1.

Table 1 (Continued)

The compounds of this invention are useful in treating or inhibiting diseases which are characterized by excessive smooth muscle cell proliferation (smooth muscle cell hyperproliferation). The compounds are particularly useful in treating hyperproliferative vascular diseases which are characterized by smooth muscle cell hyperproliferation, such as restenosis, which most frequently arises from vascular reconstructive surgery and transplantation, for example, balloon angioplasty, vascular graft surgery, coronary artery bypass surgery, and heart transplantation. Other disease states in which there is unwanted "cellular" vascular proliferation include hypertension, asthma, and congestive heart failure. The compounds of this invention are also useful as inhibitors of angiogenesis. Angiogenesis (neovascularization), the process by which new capillaries are formed, is of principal importance for a number of pathological events including chronic inflammation and malignant processes. The compounds of this invention are therefore useful as antineoplastic agents.

The compounds of this invention can be formulated neat or with a pharmaceutical carrier for administration, the proportion of which is determined by the solubility and chemical nature of the compound, chosen route of administration and standard pharmacological practice. The pharmaceutical carrier may be solid or liquid.

A solid carrier can include one or more substances which may also act as flavoring agents, lubricants, solubilizers, suspending agents, fillers, glidants, compression aids, binders or tablet-disintegrating agents; it can also be an encapsulating material. In powders, the carrier is a finely divided solid which is in admixture with the finely divided active ingredient. In tablets, the active ingredient is mixed with a carrier having the necessary compression properties in suitable proportions and compacted in the shape and size desired. The powders and tablets preferably contain up to 99% of the active ingredient. Suitable solid carriers include, for example, calcium phosphate, magnesium stearate, talc, sugars, lactose, dextrin, starch, gelatin, cellulose, methyl cellulose, sodium carboxymethyl cellulose, polyvinylpyrrolidine, low melting waxes and ion exchange resins.

Liquid carriers are used in preparing solutions, suspensions, emulsions, syrups, elixirs and pressurized compositions. The active ingredient can be dissolved or suspended in a pharmaceutically acceptable liquid carrier such as water, an organic solvent, a mixture of both or pharmaceutically acceptable oils or fats. The liquid carrier can contain other suitable pharmaceutical additives such as solubilizers, emulsifiers, buffers, preservatives, sweeteners, flavoring agents, suspending agents, thickening agents, colors, viscosity regulators, stabilizers or osmo-regulators. Suitable examples of liquid carriers for oral and parenteral administration include water (partially containing additives as above, e.g. cellulose derivatives, preferably sodium carboxymethyl cellulose solution), alcohols (including monohydric alcohols and polyhydric alcohols, e.g. glycols) and their derivatives, lethicins, and oils (e.g. fractionated coconut oil and arachis oil). For parenteral administration, the carrier can also be an oily ester such as ethyl oleate and isopropyl myristate. Sterile liquid carriers are useful in sterile liquid form compositions for parenteral administration. The liquid carrier for pressurized compositions can be halogenated hydrocarbon or other pharmaceutically acceptable propellant. Liquid pharmaceutical compositions which are sterile solutions or suspensions can be utilized by, for example, intramuscular, intraperitoneal or subcutaneous injection. Sterile solutions can also be administered intravenously. The compounds of this invention can also be administered orally either in liquid or solid composition form. The compounds of this invention may be administered rectally or vaginally in the form of a conventional suppository. For administration by intranasal or intrabronchial inhalation or insufflation, the compounds of this invention may be formulated into an aqueous or partially aqueous solution, which can then be utilized in the form of an aerosol. The compounds of this invention may also be administered transdermally through the use of a transdermal patch containing the active compound and a carrier that is inert to the active compound, is non toxic to the skin, and allows delivery of the agent for systemic absorption into the blood stream via the skin. The carrier may take any number of forms such as creams and ointments, pastes, gels, and occlusive devices. The creams and ointments may be viscous liquid or semisolid emulsions of either the oil-in-water or water-in-oil type. Pastes comprised of absorptive powders dispersed in petroleum or hydrophilic petroleum containing the active ingredient may also be suitable. A variety of occlusive devices may be used to release the active ingredient into the blood stream such as a semipermeable membrane covering a reservoir containing the active ingredient with or without a carrier, or a matrix containing the active ingredient. Other occlusive devices are known in the literature.

The dosage requirements vary with the particular compositions employed, the route of administration, the severity of the symptoms presented and the particular subject being treated. Based on the results obtained in the standard pharmacological test procedures, projected daily dosages of active compound would be 0.1 to 10 mg/kg administered parenterally (intravenous preferred), with projected daily oral dosage being approximately ten-fold higher. Anticipated intravenous administration would last for approximately 5-30 days following acute vascular injury (i.e., balloon angioplasty or transplantation) and for a longer duration for the treatment of chronic disorders. Treatment will generally be initiated with small dosages less than the optimum dose of the compound. Thereafter the dosage is increased until the optimum effect under the circumstances is reached; precise dosages for oral, parenteral, nasal, or intrabronchial administration will be determined by the administering physician based on experience with the individual subject treated. Preferably, the pharmaceutical composition is in unit dosage form, e.g. as tablets or capsules. In such form, the composition is sub-divided in unit dose containing appropriate quantities of the active ingredient; the unit dosage forms can be packaged compositions, for example, packaged powders, vials, ampoules, pre filled syringes or sachets containing liquids. The unit dosage form can be, for example, a capsule or tablet itself, or it can be the appropriate number of any such compositions in package form. The following provides the preparation of representative compounds of this invention.

Example 1 N-(2-Chloro-5-r(4'.6'-O-ethylideneVβ-D-maltosyloxymethyl]-phenyl}-acetamide step 1 4-Chloro-3-nitro-benzyl-β-D-maItoside heptaacetate

To a stirred solution of 4-chloro-3-nitrobenzyl alcohol (6.70 g, 35.7 mmol) and HgBr₂ (14.2 g, 39.3 mmol) in freshly distilled CH₃CΝ (239 mL) was added in one portion Hg(CN)₂ (9.02 g, 35.7 mmol). After 0.5 h, acetobromomaltose (25.0 g, 35.7 mmol) was added, and the mixture stirred for 18 h at rt. The reaction was then quenched with a mixture of H₂O:brine (1:1, 100 mL) and extracted with 10% CH₂Cl₂:EtOAc. The combined organic extracts were dried (MgSO₄) and concentrated. Purification by flash chromatography (10:90 to 80:20 EtOAc:petroleum ether gradient) gave 51.9 g (90%) of the title compound as a glassy oil which was recrystallized from Et₂O:petroleum ether to afford a glassy white solid, mp 107-111 °C; 'H NMR (CDC1₃) δ 2.00 (s, 3H), 2.02 (s, 3H), 2.03, (s, 3H), 2.04 (s, 6H), 2.11 (s, 3H), 2.15 (s, 3H), 3.70 (ddd, J = 2.9, 4.2, 9.7 Hz, 1H), 3.94-3.98 (m, 1H), 4.01-4.07 (m, 2H), 4.20-4.28 (m, 2H), 4.54 (dd, J = 2.9, 12.3 Hz, 1H), 4.63-4.68 (m, 2H), 4.84- 4.94 (m, 3H), 5.06 (t, J = 10.1 Hz, 1H), 5.26 (t, J = 9.2 Hz, 1H), 5.36 (dd, J = 9.7, 10.3 Hz, 1H), 5.42 (d, J = 4.2 Hz, 1H), 7.43 (dd, J = 2.2, 8.3 Hz, 1H), 7.53 (d, J = 8.3 Hz, 1H), 7.83 (d, J = 2.0 Hz, 1H); IR (KBr) 3450, 2950, 1755, 1550, 1375, 1230 and 1050 cm^"1; mass spectrum [(+) ESI], m/z 823/825 (M + NH₄ ⁺), 828/830 (M + Na)⁺; Anal. Calcd. for C₃₃H₄₀C1NO₂₀: C, 49.17; H, 5.00; N, 1.74, Found: C, 49.16; H, 4.88; N, 1.71.

step 2 2-Chloro-5-(hepta-0-acetyl-β-D-maltosyl-oxymethyI)-phenylamine

A solution containing 4-chloro-3-nitro-benzyl- β-D-maltoside heptaacetate (19.3 g, 23.9 mmol) and tin (II) chloride dihydrate (37.7 g, 167 mmol) in EtOAc (479 mL) was refluxed for 2 h. The reaction was cooled to rt, carefully quenched with sat. aq. NaHCO₃ (until basic), diluted with EtOAc (250 mL), stirred for 0.5 h and filtered. The biphasic filtrate was separated and the aqueous phase extracted with EtOAc. The combined organic extracts were dried (Νa₂SO₄) and concentrated. Purification by flash chromatography (0 to 12% acetone/CHCl₃ gradient) gave 17.8 g (96%) 2- Chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenylamine as a glassy solid, mp 78-79 °C; Η NMR (CDCL.) δ 2.00 (s, 9H), 2.026 (s, 3H), 2.032 (s, 3H), 2.11 (s, 3H), 2.16 (s 3H), 3.00-5.00 (bs, 2H), 3.64-3.68 (m, IH), 3.97 (ddd, J = 2.4, 4.2, 10.1 Hz, IH), 4.02-4.07 (m, 2H), 4.24 (dd, J = 2.2, 3.7, IH), 4.27 (dd, J = 2.6, 4.0 Hz, IH), 4.50-4.57 (m, 3H), 4.74 (d, J = 12.1 Hz, IH), 4.83-4.90 (m, 2H), 5.05 (t, J = 10.1 Hz, IH), 5.22 (t, J = 9.2 Hz, IH), 5.35 (dd, J = 9.7, 10.5 Hz, IH), 5.42 (d, J = 4.0 Hz, IH), 6.62 (dd, J = 2.0, 8.1 Hz, IH), 6.76 (d, J = 2.0 Hz, IH), 7.21 (d, J = 8.1, IH); IR (KBr) 3450, 3350, 2950, 1755, 1650, 1425, 1375, 1230 and 1050 cm^'1; mass spectrum [(+) ESI], m/z 776/778 (M + H)⁺, 798/800 (M + Na)⁺; Anal. Calcd. for C₃₃H₄₂ClNΟ₁₈: C, 51.07; H, 5.45; N, 1.80, Found: C, 50.94; H, 5.52; N, 1.60.

step 3

N-[2-ChIoro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenyl]-acetamide

To a stirred solution of 2-chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)- phenylamine (20.6 g, 26.5 mmol) and triethylamine (8.13 mL, 58.3 mmol) in THF (265 mL) at 0 °C was added dropwise acetyl chloride (2.26 mL, 31.8 mmol). After 0.5 h at this temperature, it was warmed to rt and stirred an additional 6 h. At this point, the reaction was concentrated and taken up in EtOAc (700 mL). This organic solution was washed with 1 Ν HC1 (70 mL), sat. aq. ΝaHCO₃ (70 mL), and brine (70 mL) and then dried (MgSO₄). After concentration, the residue was purified by flash chromatography (20:80 to 100:0 EtOAc:petroleum ether gradient) to afford the product (16.2 g, 75%) as a glassy solid, mp 84-86 °C; Η NMR (CDCL) δ 2.00 (s, 6H), 2.020 (s, 3H), 2.027 (s, 3H), 2.03 (s, 3H), 2.11 (s, 3H), 2.16 (s, 3H), 2.24 (s, 3H), 3.66-3.69 (m, IH), 3.94-3.98 (m, IH), 4.00-4.06 (m, 2H), 4.22-4.28 (m, 2H), 4.50-4.61 (m, 3H), 4.80-4.91 (m, 3H), 5.05 (t, J = 10.1 Hz, IH), 5.22 (t, J = 9.2 Hz, IH), 5.35 (dd, J = 9.4, 10.5 Hz, IH), 5.41 (d, J = 4.0 Hz, IH), 6.99 (dd, J = 2.0, 8.1 Hz, IH), 7.34 (d, J = 8.1 Hz, IH), 7.62 (s, IH), 8.32 (s, IH); IR (KBr) 3400, 2950, 1750, 1690, 1600, 1540, 1425, 1375, 1230 and 1050 cm^'1; mass spectrum [(+) ESI], m/z 818/820 (M + H)⁺, 840 (M + Na)⁺; Anal. Calcd. for C₃₅H₄₄ClNO₁₉: C, 51.38; H, 5.42; N, 1.71, Found: C, 51.03; H, 5.36; N, 1.59.

step 4 N-[2-Chloro-5-(β-D-maltosyI-oxymethyl)-phenyI]-acetamide

A solution containing N-[2-chloro-5-(hepta-O-acetyl-β-D-maltosyl- oxymethyl)-phenyl]-acetamide (0.945 g, 1.12 mmol) and 25 weight % ΝaOMe in MeOH (19.2 μL, 0.336 mmol) in MeOH (27.6 ml) was refluxed for 2.5 h. The reaction was cooled to room temperature and concentrated, and the resulting residue was triturated with Et₂O to afford the product (0.583 g, 99%) as a foam; Η ΝMR (DMSO-d₆) δ 2.07 (s, 3H), 3.03-3.16 (m 2H), 3.19-3.49 (m, 7H), 3.55-3.62 (m, 2H), 3.67-3.73 (m, IH), 4.28 (d, J = 7.7 Hz, IH), 4.33-5.76 (bs, 7H), 4.67 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.01 (d, J = 3.7 Hz, IH), 7.21 (dd, J = 1.8, 8.1 Hz, IH), 7.44 (d, J = 8.1 Hz, IH), 7.64 (d, J = 1.5 Hz, IH), 9.33-9.69 (bs, IH); IR (KBr) 3400, 2900, 1680, 1600, 1540, 1430, 1375, 1310, 1150 and 1035 cm^"1, mass spectrum [(+) ESI], m/z 524/526 (M + H)⁺, 546 (M + Νa)⁺; Anal. Calcd. for C₂₁H₃₀C1NO₁₂ 1.0 MeOH: C, 47.53; H, 6.16; N, 2.52. Found: C, 47.94; H, 6.34; N, 2.42.

step 5 N-{2-ChIoro-5-[(4',6'-O-ethylidene)-β-D-maltosyIoxymethyl]-phenyI}-acetamide

To a stirred solution of N-[2-chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]- acetamide (0.500 g, 0.954 mmol) in DMF (12.5 mL) at rt was added acetaldehyde dimethyl acetal (0.202 mL, 1.91 mmol) dropwise followed by TsOH-H.0 (0.0907 g, 0.477 mmol). The reaction mixture was heated to 60 °C for 6 h and then quenched with K_jCO, (0.0659 g, 0.477 mmol) with an additional 0.5 h heating at this temperature. At this point, the solution was filtered hot, and the solvent was distilled off using the high vac. The residue was purified by flash chromatography (80:2:1 EtONc:EtOH:H,O) to afford the product (0.323 g, 62%) as an off-white powder, mp 144-146 °C; Η ΝMR (DMSO-d₆) δ 1.22 (d, J = 5.1 Hz, 3H), 2.07 (s, 3H), 3.05-3.11 (m, IH), 3.11 (t, J = 9.4 Hz, IH), 3.25-3.37 (m, 3), 3.39-3.58 (m, 5H), 3.65-3.71 (m, IH), 3.92 (dd, J = 4.8, 9.9 Hz, IH), 4.28 (d, J = 7.7 Hz, IH), 4.65 (t, J = 5.7 Hz, IH), 4.67 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 4.69 (dd, J = 4.8, 9.9 Hz, IH), 5.09 (d, J = 4.0 Hz, IH), 5.23 (t, J = 5.7 Hz, 2H), 5.47 (d, J = 3.5 Hz, IH), 5.57 (d, J = 6.6 Hz, IH), 7.22 (dd, J = 1.8, 8.3 Hz, IH), 7.44 (d, J = 8.3 Hz, IH), 7.65 (s, IH), 9.52 (s, IH); IR (KBr) 3400, 2910, 2880, 1675, 1600, 1535, 1450, 1420, 1375, 1310, 1150, 1120, 1060, and 1020 cm^"1; mass spectrum [(+) FAB], m/z 550/552 (M + H)⁺, 572/574 (M + Na)⁺; Anal. Calcd. for C₂₃H₃₂ClNO₁₂ • 1.0 H₂O: C, 48.64; H, 6.03; N, 2.47, Found: C, 48.55; H, 5.90; N, 2.41.

Example 2

(R)-N-r5-rrr6-O-Benzoyl-4-O-(4.6-O-ethylidene- -D-glucopyranosyl)-β-D- glucopyranosyll oxyl methyl] -2-chlorophenyll acetamide

To a stirred solution of N-{2-chloro-5-[(4',6'-O-ethylidene)-β-D-maltosyloxy- methyl] -phenyl} -acetamide (0.323 g, 0.587 mmol) in THF (4.0 mL) at -40 °C was added collidine (4.0 mL, 30.3 mmol) dropwise followed by dropwise addition of BzCl (0.0818 mL, 0.704 mmol). After 2 h at this temperature, it was warmed to rt and stirred an additional 18 h. At this point, the solvent was distilled off using the high vac, and the residue was diluted with EtOAc (200 mL). This layer was washed with IN HC1 (20 mL), sat. ΝaHCO₃ (20 mL), and brine (20 mL) and then dried (MgSO₄). After concentration, the oilly residue was purified by flash chromatography (1% to 11% MeOH:CHCl₃ gradient) and recrystallization (EtOAc:Et₂O) to afford the product (0.209 g, 54%) as a white glassy solid, mp 166-169 °C; Η NMR (DMSO-J₆) δ 1.19 (d, J = 5.1 Hz, 3H), 2.04 (s, 3H), 3.09 (t, J = 9.4 Hz, IH), 3.14-3.21 (m, IH), 3.27-3.36 (m, 2H), 3.45-3.52 (m, 2H), 3.52-3.60 (m, 2H), 3.73 (ddd, J = 1.5, 5.1, 9.4 Hz, IH), 3.89 (dd, J = 4.8, 9.9 Hz, IH), 4.30 (dd, J = 5.5, 12.1 Hz, IH), 4.38 (d, J = 7.7 Hz, IH), 4.53-4.61 (m, 2H), 4.65 (q, J = 5.1, IH), 4.73 (d, J = 12.5 Hz, IH), 5.07 (d, J = 4.0 Hz, IH), 5.28 (d, J = 5.3 Hz, IH), 5.34 (d, J = 5.3 Hz, IH), 5.55 (d, J = 2.9 Hz, IH), 5.77 (d, J = 5.9 Hz, IH), 7.18 (dd, J = 2.0, 8.1 Hz, IH), 7.40 (d, J = 8.1 Hz, IH), 7.50-7.55 (m, 2H), 7.62-7.68 (m, 2H), 7.96-8.00 (m, 2H), 9.50 (s, IH); IR (KBr) 3450, 3360, 2990, 2910, 2860, 1725, 1750, 1600, 1520, 1450, 1420, 1385, 1375, 1260, 1230, 1130, 1110, 1075, 1055, and 1020 cm^"1; mass spectrum [(+) FAB], m/z 654/656 (M + H)⁺, 676/678 (M + Na)\ 692/694 (M + K)⁺; Anal. Calcd. for C₃₀H₃₆C1NO₁₃: C, 55.09; H, 5.55; N, 2.14, Found: C, 54.76; H, 5.40; N, 2.00. Example 3 t^/R -N-r2-Chloro-5-rrr2.3-di-O-acetyl-6-O-benzoyl-4-O-(2.3-di-O-acetyl-4.6-O- ethylidene-α-D- glucopyranosyl)- β-D- glucopyranosyl] oxylmethyl] phenyl] acetamide To a stirred solution of (R)-N-[5-[[[6-O-benzoyl-4-O-(4,6-O-ethylidene-α-D- glucopyranosyl)-β-D-glucopyranosyl]oxy]methyl]-2-chlorophenyl]acetamide (0.086 g, 0.131 mmol) and triethylamine (0.161 mL, 1.15 mmol) in CH₂C1₂ (6 mL) at rt was added dropwise acetic anhydride (0.0544 mL, 0.576 mmol) followed by a catalytic amount of DMAP (0.0064 g, 0.0524 mmol). After 18 h, the mixture was diluted with EtOAc (200 mL). This layer was washed with 1 Ν HC1 (20 mL), sat. aq. ΝaHCO₃ (20 mL), and brine (20 mL) and then dried (Na₂SO₄). After concentration, the residue was purified by preparatory plate chromatography (10:90 MeOH:CHCl₃) to afford the product (0.071 g, 66%) as a white, mp >87 °C (decomp.); Η NMR (DMSO-d₆) δ 1.13 (d, J = 4.8 Hz, 3H), 1.92 (s, 3H), 1.95 (s, 3H), 1.97 (s, 3H), 1.99 (s, 3H), 2.05 (s, 3H), 3.31-3.39 (m, IH), 3.55-3.67 (m, 3H), 4.10-4.19 (m, 2H), 4.41 (dd, J = 3.1, 12.3 Hz, IH), 4.54 (d, J = 12.7 Hz, IH), 4.64-4.74 (m, 3H), 4.77 (dd, J = 8.3, 9.4 Hz, IH), 4.82 (dd, J = 4.0, 10.1 Hz, IH), 4.89 (d, J = 7.9 Hz, IH), 5.18 (t, J = 9.7 Hz, IH), 5.29 (d, J = 4.2 Hz, IH), 5.33 (t, J = 9.0 Hz, IH), 7.04 (dd, J = 1.5, 8.1 Hz, IH), 7.41 (d, J = 8.1 Hz, IH), 7.55 (t, J = 7.7 Hz, 2H), 7.61 (s, IH), 7.68 (t, J = 7.5 Hz, IH), 8.01-8.07 (m, 2H), 9.45 (s, IH); IR (KBr) 3410, 2940, 2850, 1755, 1690, 1590, 1530, 1440, 1420, 1370, 1240, 1135, 1060, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 822/824 (M + H)\ 844/846 (M + Na)⁺; Anal. Calcd. for C₃₈H₄ ClNO₁₇ • 1.5 H₂O: C, 53.74; H, 5.58; N, 1.65, Found: C, 53.69; H, 5.14; N, 1.57.

Example 4 N-l2-Chloro-5-[(4'.6'-O-propylidene-β-D-maltosyl)-oxy-methyl1-phenyll-acetamide

The title compound was prepared as a white solid (0.309 g, 57%) from N-[2- chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-acetamide using propionaldehyde diethyl acetal and a procedure similar to step 5 of Example 1, mp >64 °C (decomp.); Η

ΝMR (DMSO-J₆) δ 0.86 (t, J = 7.5 Hz, 3H), 1.48-1.58 (m, 2H), 2.07 (s, 3H), 3.04- 3.14 (m, 2H), 3.25-3.58 (m, 8H), 3.68 (dd, J = 6.2, 10.5 Hz, IH), 3.95 (dd, J = 4.6, 9.9 Hz, IH), 4.28 (d, J = 7.7 Hz, IH), 4.48 (t, J = 5.1 Hz, IH), 4.65 (t, J = 5.9 Hz, IH), 4.67 (ABq. J = 12.5 Hz, Δδ = 0.22, 2H), 5.08 (d, J = 4.0 Hz, IH), 5.20 (d, J = 5.3 Hz, IH), 5.24 (d, J = 5.3 Hz, IH), 5.48 (d, J = 3.3 Hz, IH), 5.57 (d. J = 6.6 Hz, IH), 7.22 (dd, J = 1.8, 8.3 Hz, IH), 7.44 (d, J = 8.3 Hz, IH), 7.65 (s, IH), 9.52 (s. IH); IR (KBr) 3400, 2980, 2920, 2840, 1675, 1580, 1530, 1460, 1425, 1375, 1310, 1275, 1150, 1060, and 1020 cm^'1; mass spectrum [(+) FAB], m/z 586/588 (M + Na)⁺; Anal. Calcd. for C₂₄H₃ ClNO₁₂ • 1.0 H₂O: C, 49.53; H, 6.23; N, 2.41, Found: C, 49.89; H, 6.38; N, 2.19.

Example 5

N-f5-r(6-O-Benzoyl-4'.6'-O-propylidene-β-D-maltosyl)-oxy-methyll-2-chloro- phenyl) -acetamide

The title compound was prepared as a white solid (0.140 g, 47%) from N-{2- chloro-5-[(4',6'-O-propylidene-β-D-maltosyl)-oxy-methyl]-phenyl}-acetamide using a procedure similar to Example 2, mp >88 °C (decomp.); Η ΝMR (DMSΟ-J₆) δ 0.84 (t, J = 7.5 Hz, 3H), 1.45-1.57 (m, 2H), 2.04 (s, 3H), 3.08 (t, J = 5.1 Hz, IH), 3.17 (dd, J = 8.3, 13.2 Hz, IH), 3.26-3.37 (m, 2H), 3.45-3.59 (m, 4H), 3.70-3.77 (m, IH), 3.91 (dd, J = 4.6, 9.7 Hz, IH), 4.30 (dd, J = 5.3, 12.1 Hz, IH), 4.38 (d, J = 7.7 Hz, IH), 4.43 (t, J = 4.8 Hz, IH), 4.53-4.61 (m, 2H), 4.73 (d, J = 12.3 Hz, IH), 5.07 (d, J = 3.5 Hz, IH), 5.25 (d, J = 5.3 Hz, IH), 5.34 (d, J = 5.1 Hz, IH), 5.56 (d, J = 2.2 Hz, IH), 5.77 (d, J = 5.9 Hz, IH), 7.18 (d, J = 8.1 Hz, IH), 7.39 (d, J = 8.3 Hz, IH), 7.53 (t, J = 7.7 Hz, 2H). 7.61-7.68 (m, 2H), 7.98 (d, J = 7.5 Hz, 2H), 9.45 (s, IH); IR (KBr) 3410, 2970. 2920. 2860, 1720, 1675, 1590, 1530, 1450, 1420, 1375, 1270, 1060, 1020, and 720 cm^"1: mass spectrum [(-) FAB], m/z 666 (M - H)^'; Anal. Calcd. for C₃₁H₃₈ClΝO₁₃: C, 55.73; H, 5.73; N, 2.09, Found: C, 55.67; H, 5.71; N, 2.09.

Example 6

N-(5-( r4'.6^,-O-Benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosvn-oxy-methyll-2- chloro-phenyD-acetamide step 1

N-{5-[(4',6'-<9-BenzyIidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyI}- acetamide

To a stirred solution of N-[2-chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]- acetamide (14.15 g. 27.0 mmol) in DMF (325 mL) at rt was added benzaldehyde dimethyl acetal (8.11 mL, 54.0 mmol) dropwise followed by TsOHH₂O (2.57 g, 13.5 mmol). The reaction mixture was heated to 60 °C for 6 h and then quenched with K,CO₃ (1.87 g, 13.5 mmol) with an additional 0.5 h heating at this temperature. At this point, the solution was filtered hot, and the solvent was distilled off using the high vac. The residue was purified by flash chromatography (80:2:1 to 20:2:1 EtOAc:EtOH:H,O gradient) to afford the product (10.8 g, 65%) as a white solid, mp 143-147 °c_; Η NMR (DMSO-J₆) δ 2.08 (s, 3H), 3.07-3.12 (m, IH), 3.28-3.50 (m, 5H), 3.51-3.60 (m, 2H), 3.64-3.75 (m, 3H), 4.10-4.12 (m, IH), 4.30 (d, J = 7.9 Hz, IH), 4.67 (t, 5.9 Hz, IH), 4.68 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.25 (d, J = 5.1 Hz, IH), 5.30 (d, J = 5.3 Hz, IH), 5.51 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.63 ( d, J = 6.8 Hz, IH), 7.22 (dd, J = 1.5, 8.3 Hz, IH), 7.35-7.38 (m, 3H), 7.42-7.46 (m, 3H), 7.66 (s, IH), 9.53 (s, IH); IR (KBr) 3500, 3410, 2910, 2850, 1700, 1600, 1550, 1440, 1425, 1375, 1310, 1230, 1150, 1070, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 634 (M + Na)⁺; Anal. Calcd. for C₂₈H₃₄ClNO₁₂ • 1.0 H,O: C, 53.38; H, 5.76; N, 2.22, Found: C, 53.58; H, 5.62; N, 2.25.

step 2

N-(5-{[4',6'-<9-BenzyIidene-6-O-(4-toluenesuIfonyl)-β-D-maltosyl]-oxy-methyI}-2- chIoro-phenyl)-acetamide At 0 °C, to a stirred solution of N-{5-[(4',6'-O-benzylidene-β-D- maltosyloxy)-methyl]-2-chloro-phenyl} -acetamide (1.81 g, 2.96 mmol) in pyridine (6.0 mL) was added a solution of / toluenesulf onyl chloride (0.686 g, 3.60 mmol) in CH₂C1₂ (3.75 mL). After 2 h, additional ^-toluenesulfonyl chloride (0.686 g, 3.60 mmol) in CFLC L, (3.75 mL) was added and the solution was stirred at 0 °C for 2h. The reaction was quenched with ice cold H₂O (50 mL) and extracted with EtOAc. The combined organic extracts were washed successively with sat. aq. ΝaHCO₃ (2x), sat. aq. CuSO₄ (2x), brine (2x), dried (Na-SO and concentrated. Purification by flash chromatography (5-10% MeOH:CH₂Cl₂ gradient) gave 0.930 g, (41%) of a colorless solid, mp 105-120 °C; Η NMR (DMSO-J₆) δ 2.08 (s, 3H), 2.33 (s, 3H), 3.04-3.09 (m, IH), 3.27-3.45 (m, 4H), 3.49-3.53 (m, IH), 3.60-3.65 (m, 3H), 3.95 (d, IH), 4.13 (dd, IH), 4.29-4.33 (m, 2H), 4.46 (d, 1 H), 4.62 (d, 1 H), 5.05 (d, IH), 5.33-5.35 (m, 2H), 5.55 (d, IH), 5.57 (s, IH), 5.75 (d, IH), 7.18 (d, IH), 7.35-7.47 (m, 8H), 7.78 (d, 2H), 9.53 (s, IH); mass spectrum [(+) ESI], m/z 766/768 (M + H)⁺, 783/785 (M + NH₄)⁺; Anal. Calcd. for C₃₅H₄₀NC1O₁₄S H₂O: C, 53.60; H, 5.40; N, 1.79, Found: C, 53.46; H, 5.18; N, 1.80.

Example 7

N-(5-( r2.3.2'.3'-Tetra-O-acetyl-4'.6'-O-benzylidene-6-O-(4-toluenesulfonyl)-β-D- maltosyl1-oxy-methyll-2-chloro-phenyl)-acetamide

The title compound was prepared as a colorless solid (0.942 g, 99%) from N- (5-{[4',6'-O-benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosyl]-oxy-methyl}-2- chloro-phenyl)-acetamide using a procedure similar to Example 3, mp 116-122 °C; 'H ΝMR (DMSO-J₆) δ 1.91 (s, 3H), 1.92 (s, 3H), 1.96 (s, 3H), 2.00 (s, 3H), 2.08 (s, 3H), 2.29 (s, 3H), 3.68 (dd, IH), 3.77 (t, IH), 3.85 (t, IH), 3.90 (t, IH), 3.97-4.00 (m, IH), 4.21 (dd, IH), 4.32 (s, 2H), 4.39 (d, IH), 4.56 (d, IH), 4.60 (d, IH), 4.78 (d, IH), 4.86 (dd, IH), 5.17-5.30 (m, 3H), 5.65 (s, IH), 7.03 (d, IH), 7.34-7.41 (m, 7H), 7.46 (d, IH), 7.59 (s, IH), 7.80 (d, 2H), 9.52 (s, IH); mass spectrum [(+) ESI], m z 934/936 (M + H)⁺; Anal. Calcd. for C₄₃H₄₈ΝClO₁₈S: C, 55.27; H, 5.17; N, 1.50, Found: C, 55.07; H, 5.05; N, 1.47.

Example 8 N-{5-r(6-O-Benzyl-4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl) -acetamide step 1

N-{5-[(2,2',3,3'-Tetra-0-acetyl-4',6'-O-benzylidene-β-D-maItosyl)-oxy-methyl]-2- chloro-phenyl}-acetamide A solution containing N-(5-{[2,3,2',3'-tetra-O-acetyl-4',6'-O-benzylidene-6-

O-(4-toluenesulfonyl)-β-D-maltosyl]-oxy-methyl}-2-chloro-phenyl)-acetamide (1.021 g, 1.093 mmol) and sodium formate (0.1858 g, 2.732 mmol) in EtOrtDMSO÷ILO (2:2:1, 21.9 mL) was heated at 100°C for 2 days. The reaction was cooled to ambient temperature, diluted with 10% CH₂Cl₂:EtONc (100 mL), washed with brine (3x), dried (MgSO₄) and concentrated in vacuo. Purification by flash chromatography (1,2 and 3% MeOH:CHCl₃ gradient) gave 0.446 g (52%) of title compound as a colorless solid; 'H ΝMR (DMSO-J₆) δ 1.93 (s, 3H), 1.95 (s, 3H), 1.98 (s, 3H), 2.01 (s, 3H), 2.08 (s, 3H), 3.68-3.99 (m, 7H), 4.19-4.22 (m, IH), 4.57 (d, J = 12.7 Hz, IH), 4.64- 4.87 (m, 4H), 5.00 (br.s, IH), 5.21-5.33 (m, 3H), 5.63 (s, IH), 7.08 (dd, J = 8.3, 1.8 Hz, IH), 7.38 (s, 5H), 7.47 (d, J = 8.2 Hz, IH), 7.64 (s, IH), 9.53 (s, IH).

step 2

N-{5-[(2,2%3,3'-Tetra-0-acetyl-6-O-benzyl-4',6'-O-benzylidene-β-D-maltosyl)- oxy-methyl]-2-chloro-phenyI}-acetamide

At ambient temperature, to a stirred solution containing N-{5-[(2,2',3,3'-tetra- O-acetyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- acetamide (0.221 g, 0.283 mmol) and benzyl 2,2,2-trichloroacetimidate (0.105 mL, 0.567 mmol) in 10% CEL l^benzene (10 mL) was added trifluoromethane sulfonic acid (1 drop). After 16 h, the reaction was diluted with 5% MeOH:CHCl₃ (10 mL), filtered through a 1" silica gel pad eluting with 5% MeOH:CHCl₃ and concentrated in vacuo. Purification by flash chromatography (1 and 2% MeOH:CHCl₃ gradient) gave 0.134 g (54%) of title compound as a colorless solid; Η ΝMR (DMSO-J₆) δ 1.94 (s, 3H), 1.96 (s, 3H), 1.98 (s, 3H), 2.01 (s, 3H), 2.07 (s, 3H), 3.69-4.07 (m, 8H), 4.54- 4.59 (m, 3H), 4.69-4.77 (m, 2H), 4.82-4.86 (m, 2H), 5.23-5.34 (m, 3H), 5.61 (s, IH),

7.09 (dd, J = 8.3, 1.7 Hz, IH), 7.27-7.37 (m, 10H), 7.46 (d, J = 8.2 Hz, IH), 7.65 (s, IH), 9.52 (s, IH).

step 3

N-{5-[(6-O-Benzyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl }- acetamide

The title compound was prepared as a colorless solid (0.085 g, 65%) from N- {5-[(2,2',3,3^'-tetra-O-acetyl-6-O-benzyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-acetamide using a procedure similar to step 4 of Example 1, mp 98-105 °C; Η ΝMR (DMSO-J₆) δ 2.06 (s, 3H), 3.09-3.11 (m, IH), 3.28-3.75 (m, 10H), 3.99 (dd, IH), 4.33 (d, J = 7.7 Hz, IH), 4.50 (s, IH), 4.51 (s, IH), 4.66 (ABq, J = 12.6 Hz, Δδ = 0.08, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.30 (d, J = 9.0 Hz, IH), 5.31 (d, J = 9.0 Hz. IH). 5.56-5.57 (m, 2H), 5.70 (d, J = 6.6 Hz, IH), 7.21-7.38 (m, 9H), 7.42 - 7.45 (m, 3H), 7.66 (s, IH), 9.52 (s, IH); mass spectrum [(+) FAB], m/z 724 (M + H)⁺; Anal. Calcd. for C₃₅H₄₀NC1O₁₂ 0.5 H₂O: C, 59.11 ; H, 5.81; N, 1.97, Found: C, 59.12; H, 5.76; N, 1.98.

Example 9 N-(5-l(6-O-Benzyl-4'.6'-O-ethylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenvII- acetamide step 1

N-{5-[(2,2',3,3'-Tetra-0-acetyl-6-0-benzyl-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}-acetamide At ambient temperature, to a stirred solution of N-{5-[(2,2',3,3'-tetra-O-acetyl

-6-O-benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- acetamide (0.202 g, 0.232 mmol) in MeOH (5 mL) was added 1M ethereal ^' HC1. After 2 h, the reaction was quenched with sat. aq. ΝaHCO₃ (25 mL), diluted with H₂O (25 mL), extracted with EtOAc, dried (Na₂SO₄) and concentrated. Purification by flash chromatography (5% MeOH:CHCl₃) gave 0.136 g (75%) of title compound; Η NMR (DMSO-J₆) δ 1.92 (s, 3H), 1.95 (s, 6H), 2.00 (s, 3H), 2.07 (s, 3H), 3.49-3.56 (m, 4H), 3.75-3.94 (m, 4H), 4.50-4.59 (m, 5H), 4.67-4.76 (m, 2H), 4.83 (d, J = 7.9 Hz, IH), 5.06-5.13 (m, IH), 5.21-5.29 (m, 2H), 5.44 (d, J = 6.0 Hz, IH), 7.08 (dd, J = 8.1, 1.5 Hz, IH), 7.26-7.36 (m, 5H), 7.45 (d, J = 8.2 Hz, IH), 7.64 (s, IH), 9.52 (s, IH).

step 2

N-{5-[(2,2',3,3'-Tetra-O-acetyl-6-O-benzyl-4',6'-O-ethylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-acetamide A stirred solution containing N-{5-[(2,2',3,3'-tetra-O-acetyl-6-O-benzyl-β-D- maltosyl)-oxy-methyl]-2-chloro-phenyl}-acetamide (0.274 g, 0.350 mmol), priopionaldehyde (45.5 μL, 0.630 mmol) and camphor sulfonic acid (18.3 mg, 0.0787 mmol) in benzene (6.3 mL) was refluxed with Dean-Stark azeotropic removal of water. After 2.5 h, The reaction was cooled to room temperature, quenched with ΝaHCO₃ (25 mL), extracted with EtOAc and dried (Na₂SO₄). Purification by flash chromatography (1, 2 and 3% MeOH:CHCl₃ gradient) gave 0.346 g (96%) of title compound; Η NMR (DMSO-J₆) δ 0.82 (t, 3H), 1.48-1.53 (m, 2H), 1.92 (s, 3H), 1.95 (s, 3H), 1.97 (s, 3H), 2.01 (s, 3H), 2.07 (s, 3H), 3.41-3.48 (m, IH), 3.60-3.64 (m, 2H), 3.71-4.03 (m, 5H), 4.49-4.69 (m, 4H), 4.70-4.85 (m, 4H), 5.14-5.32 (m, 3H), 7.07-7.36 (m, 6H), 7.46 (d, J = 8.2 Hz, IH), 7.64 (s, IH), 9.52 (s, IH).

step 3

N-{5-[(6-O-Benzyl-4',6'-O-ethylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}-acetamide

A solution containing N-{5-[(2,2',3,3'-tetra-O-acetyl-6-O-benzyl-4',6'-O- ethylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl} -acetamide (0.217 g, 0.264 mmol) and 25 weight% ΝaOMe in MeOH (0.0285 g, 0.132 mmol) in MeOH (5.3 mL) was refluxed for 3h. The reaction was cooled to room temperature and concentrated. Purification by flash chromatography (10% MeOH/CH,Cl₂ gradient) gave the product (0.1 OOg, 58%) as a white solid, mp 182-185 °C; Η ΝMR (DMSO- d₆) δ 0.85 (t, J = 7.5 Hz, 3H), 1.21-1.55 (m, 2H), 2.05 (s, 3H), 3.05-3.13 (m, 2H), 3.24-3.70 (m, 9H), 3.83 (dd, J = 9.8, 4.7 Hz, IH), 4.30 (d, J = 7.7 Hz, IH), 4.43-4.49 (m, 3H), 4.63 (ABq, J = 12.4 Hz, Δδ = 0.07, 2H), 5.07 (d, J = 3.5 Hz, IH), 5.24 (d, J = 5.3 Hz, IH), 5.31 (d, J = 5.3 Hz, IH), 5.55 (d, J = 2.6 Hz, IH), 5.65 (d, J = 6.6 Hz, IH), 7.17-7.34 (m, 6H), 7.41 (d, J = 8.3 Hz, IH), 7.63 (s, IH), 9.55 (s, IH). mass spectrum [(+) ESI] 671 (M + ΝH₄)⁺; Anal. Calcd. for C₃,H₄₀NC1O₁₂: C, 56.92; H, 6.16; N, 2.14, Found: C, 56.69; H, 6.33; N, 1.99.

Example 10

N-(2-Chloro-5-( r4'.6'-O-(4-nitro)-benzylidene-β-D-maltosyl]-oxy-methyl}-phenyl)- acetamide To a stirred solution of N-[2-chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]- acetamide (0.500 g, 0.954 mmol) in DMF (30 mL) at rt was added 3-nitro- benzaldehyde dimethyl acetal (0.752 g, 3.82 mmol) followed by CSA (0.111 g, 0.477 mmol). The reaction mixture was heated to 60 °C for 18 h and was about 35% complete by TLC. Another 0.5 eq. CSA (0.11 lg) added and heated at 90 °C for 3 h. The reaction was then quenched with K₂CO₃ (0.132 g, 0.954 mmol) with an additional 0.5 h heating at 60 °C. At this point, the solution was filtered hot, and the solvent was distilled off using the high vac. The residue was purified by flash chromatography (40:2:1 to 20:2:1 EtOAc:EtOH:H₂O gradient) to afford the product (0.262 g, 42%) as a white solid, mp 221-223 °C; Η NMR (DMSO-J₆) δ 2.07 (s, 3H), 3.06-3.12 (m, IH), 3.26-3.49 (m, 5H), 3.49-3.62 (m, 2H), 3.68-3.77 (m, 3H), 4.11- 4.20 (m, IH), 4.30 (d, J = 7.7 Hz, IH), 4.67 (t, J = 5.7 Hz, IH). 4.68 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 5.16 (d, J = 3.7 Hz, IH), 5.25 (d, J = 4.8 Hz, IH), 5.36 (d, J = 4.8 Hz, IH), 5.49 (d, J = 3.1 Hz, IH), 5.62 (d, J = 6.6 Hz, IH), 5.74 (s, IH), 7.22 (dd, J = 1.8, 8.1 Hz, IH), 7.44 (d, J = 8.3 Hz, IH), 7.65 (s, IH), 7.73 (d, J = 8.8 Hz, 2H), 8.25 (dt, J = 2.2, 9.0 Hz, 2H), 9.52 (s, IH); IR (KBr) 3410, 2910, 2870, 1670, 1610, 1590, 1530, 1440, 1420, 1355, 1320, 1265, 1140, 1075, and 1035 cm^"1; mass spectrum [(-) FAB], m/z 655 (M - H)^"; Anal. Calcd. for C₂₈H₃₃ClN₂O₁₄: C, 51.19; H, 5.06; N, 4.26, Found: C, 50.87; H, 4.87; N, 4.32.

Example 11

N-(5-i r6-O-Benzoyl-4'.6'-O-(4-nitro)-benzylidene-β-D-maltosyll-oxy-methyl}-2- chloro-phenvD-acetamide

The title compound was prepared as a white solid (0.080 g, 35%) from N-(2- chloro-5-{ [4',6'-O-(4-nitro)-benzylidene-β-D-maltosyl]-oxy-methyl}-phenyl)- acetamide using the procedure of Example 2, mp >167 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.04 (s, 3H), 3.15-3.22 (m, IH), 3.37-3.43 (m, 2H), 3.51 (td, J = 2.9, 8.8 Hz, IH), 3.57-3.64 (m, 3H), 3.70-3.78 (m, 2H), 4.09 (dd, J = 4.6, 9.9 Hz, IH), 4.35 (dd, J = 5.1, 12.3 Hz, IH), 4.39 (d, J = 7.7 Hz, IH), 4.57-4.63 (m, IH), 4.65 (ABq, J = 12.3 Hz, Δδ = 0.14, 2H), 5.15 (d, J = 4.0 Hz, IH), 5.36 (d, J = 5.3 Hz, IH), 5.41 (d, J = 5.3 Hz, IH), 5.57 (d, J = 3.1 Hz, IH), 5.70 (s, IH), 5.81 (d, J = 6.2 Hz, IH), 7.19 (dd, J = 1.8, 8.1 Hz, IH), 7.40 (d, J = 8.1 Hz, IH), 7.50-7.56 (m, 2H), 7.62- 7.72 (m, 4H), 7.97-8.01 (m, 2H), 8.24 (dt, J = 2.4, 9.2 Hz, 2H), 9.45 (s, IH); IR (KBr) 3410, 2850, 1725, 1660, 1610, 1590, 1530, 1445, 1420, 1355, 1270, 1120, 1075, 1025, and 715 cm^"1; mass spectrum [(+) FAB], m/z 783 (M + Νa)⁺; Anal. Calcd. for C₃₅H₃₇ClN₂O₁₅ • 1.0 H.O: C, 53.95; H, 5.05; N, 3.60, Found: C, 53.86; H, 4.75; N, 3.51. Example 12

N-{2-Chloro-5-r(4'.6'-O-(4-chloro -benzylidene-β-D-maltosyl)-oxy-methyll- phenyl } -acetamide

The title compound was prepared as a white glass (0.315 g, 51%) from N-[2- chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-acetamide using -chloro-benzaldehyde dimethyl acetal and the procedure of Example 10, mp >97 °C (decomp.); ^!H ΝMR (DMSO-J₆) δ 2.07 (s, 3H), 3.09 (t, J = 8.8 Hz, IH), 3.28-3.48 (m, 5H), 3.49-3.61 (m, 2H), 3.61-3.75 (m, 3H), 4.11 (d, J = 5.3 Hz, IH), 4.30 (d, J = 1.1 Hz, IH), 4.63-4.72 (bs, IH), 4.68 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.21-5.36 (bs, 2H), 5.47-5.53 (bs, IH), 5.57-5.66 (bs, IH), 5.59 (s, IH), 7.22 (dd, J = 2.0, 8.3 Hz, IH), 7.42-7.48 (m, 5H), 7.65 (s, IH), 9.52 (s, IH); IR (KBr) 3390, 2920, 2850, 1670, 1590, 1530, 1500, 1450, 1420, 1365, 1300, 1140, 1070, 1030, and 815 cm ¹; mass spectrum [(+) FAB], m/z 668 (M + Νa)⁺; Anal. Calcd. for C₂₈H₃₃Cl₂NO₁₂ • 0.5 H,O: C, 51.31; H, 5.23; N, 2.14, Found: C, 51.13; H, 5.44; N, 1.92.

Example 13

N-(5-l(6-O-Benzoyl-4'.6'-O-(4-chloro)-benzylidene-β-D-maltosyl)-oxy-methyll-2- chloro-phenyl )-acetamide

The title compound was prepared as a white solid (0.158 g, 50%) from N-{2- chloro-5-[(4',6'-O-(4-chloro)-benzylidene-β-D-maltosyl)-oxy-methyl]-phenyl}- acetamide using a procedure similar to Example 2, mp >182 °C (decomp.); ^!H ΝMR (DMSO-d₆) δ 2.05 (s, 3H), 3.15-3.22 (m, IH), 3.28-3.43 (m, 2H), 3.48-3.63 (m, 4H), 3.67-3.73 (m, IH), 3.73-3.78 (m, IH), 4.03-4.07 (m, IH), 4.32-4.37 (m, IH), 4.39 (d, J = 7.9 Hz, IH), 4.57-4.63 (m, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.14 (d, J = 4.0 Hz, IH). 5.36 (dd, J = 2.6, 5.1 Hz, 2H), 5.54 (s, IH), 5.56 (d, J = 3.1 Hz, IH), 5.79 (d, J = 6.4 Hz. IH), 7.19 (dd, J = 2.0, 8.3 Hz, IH), 7.40 (d, J = 8.3 Hz, IH), 7.43 (s, 4H), 7.53 (t, J = 7.9 Hz, 2H), 7.63-7.68 (m, 2H), 7.99 (dd, J = 0.9, 7.9 Hz, 2H), 9.50 (s, IH); IR (KBr) 3450, 3380, 2960, 2900, 2860, 1730, 1700, 1665, 1590, 1530, 1495, 1440, 1415. 1365, 1310, 1280, 1140, 1075, 1050, 1035, 1015, 820, and 720 cm^" '; mass spectrum [(+) FAB], m/z 750 (M + H)⁺, 772 (M + Νa)⁺; Anal. Calcd. for C₃₅H₃₇Cl₂NO_I3: C. 56.01; H, 4.97; N, 1.87, Found: C, 55.67; H, 4.91; N, 1.87. Example 14

N-(2-Chloro-5-r(4'.6'-O-isobutylidene-β-D-maltosyl)-oxy-methvn-phenyl)- acetamide

The title compound was prepared as a white solid (0.250 g, 45%) from N-[2- chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-acetamide using isobutyraldehyde diethyl acetal and the procedure of Example 10, mp >122 °C (decomp.); ^!H ΝMR (DMSO-J₆) δ 0.87 (dd, J = 5.5, 6.6 Hz, 6H), 1.68-1.78 (m, IH), 2.07 (s, 3H), 3.04- 3.13 (m, 2H), 3.24-3.55 (m, 8H), 3.68 (dd, J = 6.2, 10.5 Hz, IH), 3.97 (dd, J = 4.6, 9.1 Hz, IH), 4.27 (s, IH), 4.28 (d, J = 3.7 Hz, IH), 4.65 (t, J = 5.9 Hz, IH), 4.67 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.06 (d, J = 4.0 Hz, IH), 5.17 (d, J = 5.3 Hz, IH), 5.24 (d, J = 5.3 Hz, IH), 5.50 (d, J = 3.3 Hz, IH), 5.59 (d, J = 6.6 Hz, IH), 7.22 (dd, J = 1.5, 7.9 Hz, IH), 7.44 (d, J = 8.3 Hz, IH), 7.65 (s, IH), 9.52 (s, IH); IR (KBr) 3420, 2960, 2910, 2830, 1670, 1590, 1530, 1460, 1420, 1370, 1310, 1255, 1145, 1080, 1055, and 1030 cm^"1; mass spectrum [(-) ESI], m/z 576 (M - H)^"; Anal. Calcd. for C₂₅H₃₆ClΝO₁₂- 0.5 H₂O: C, 51.15; H, 6.35; N, 2.39, Found: C, 51.06; H, 6.56; N, 2.45.

Example 15

N-{5-[(6-O-Benzoyl-4'.6'-O-isobutylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl} -acetamide

The title compound was prepared as a white solid (0.079 g, 41%) from N-{2- chloro-5-[(4^'.6'-O-isobutylidene-β-D-maltosyl)-oxy-methyl]-phenyl}-acetamide using the procedure of Example 2, mp >123 °C (decomp.); Η ΝMR (DMSO- ₆) δ 0.85 (t, J = 6.4 Hz, 6H), 1.66-1.75 (m, IH), 2.05 (s, 3H), 3.07 (t, J = 9.4 Hz, IH), 3.15-3.21 (m. IH), 3.26-3.36 (m, 2H), 3.46-3.60 (m, 4H), 3.72-3.77 (m, IH), 3.92 (dd, J = 4.8. 10.1 Hz, IH), 4.23 (d, J = 4.8 Hz, IH), 4.30 (dd, J = 5.1, 12.1 Hz, IH), 4.38 (d, J = 7.7 Hz, IH), 4.57 (d, J = 10.5 Hz, IH), 4.64 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.06 (d, J = 4.0 Hz, IH), 5.21 (d, J = 4.8 Hz, IH), 5.34 (d, J = 5.1 Hz, IH), 5.57 (d, J = 2.2 Hz, IH), 5.76 (d, J = 5.9 Hz, IH), 7.18 (dd, J = 1.5, 8.3 Hz, IH), 7.40 (d, J = 8.3 Hz. IH), 7.53 (t, J = 7.9 Hz, 2H), 7.61-7.68 (m, 2H), 7.96-8.01 (m, 2H), 9.50 (s, IH): IR (KBr) 3410, 2960, 2910, 2840, 1725, 1660, 1610, 1590, 1530, 1440, 1425, 1375.1270, 1080, 1055, 1025, and 715 cm^"1; mass spectrum [(-) APCI], m/z 681.0/683.1 (M)\ Anal. Calcd. for C₃₂H₄₀C1NO₁₃ • 1.0 H₂O: C, 54.90; H, 6.05; N, 2.00, Found: C, 54.95; H, 5.90; N, 1.94.

Example 16 N-(5-r(4'.6'-O-((lR)-2-Phenyl-ethylidene)-β-D-maltosyloxy)-methyll-2-chloro- phenyl} -acetamide

The title compound was prepared as a white solid (0.210 g, 35%) from N-[2- chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-acetamide using phenylacetaldehyde dimethyl acetal and the procedure of Example 10, mp >106 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.07 (s, 3H), 2.81 (dd, J = 6.4, 14.1, IH), 2.91 (dd, J = 4.0, 14.1 Hz, IH), 3.04-3.11 (m, IH), 3.16 (t, J = 9.4 Hz, IH), 3.26-3.54 (m, 7H), 3.58 (td, J = 5.1, 10.1 Hz, IH), 3.65-3.72 (m, IH), 3.93 (dd, J = 4.8, 9.9 Hz, IH), 4.29 (d, J = 7.7 Hz, IH), 4.65 (t, J = 5.9 Hz, IH), 4.67 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 4.75 (dd, J = 4.2, 6.2 Hz, IH), 5.09 (d, J = 3.7 Hz, IH), 5.23 (dd, J = 5.3, 10.1 Hz, 2H), 5.47 (d, J = 3.5 Hz, IH), 5.57 (d, J = 6.6 Hz, IH), 7.17-7.30 (m, 6H), 7.44 (d, J = 8.1 Hz, IH), 7.65 (s, IH), 9.52 (s, IH); IR (KBr) 3400, 2920, 2850, 1670, 1590, 1530, 1450, 1420, 1375, 1310, 1250, 1150, 1130, 1060, 1025, and 750 cm^'1; mass spectrum [(+) FAB], m/z 648 (M + Νa)⁺; Anal. Calcd. for C₂₉H₃₆ClNO₁₂ • 2.75 H₂O: C, 51.56; H, 6.19; N,

2.07, Found: C, 51.47; H, 5.52; N, 2.13.

Example 17

N-(5-r(6-O-Benzoyl-4^,.6'-O-((lR)-2-Dhenyl-ethylidene)-β-D-maltosyloxy -methyll- 2-chloro-phenyl I -acetamide

The title compound was prepared as a white solid (1.25 g, 63%) from N-{5- [(4',6'-O-((lR)-2-phenyl-ethylidene)-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}- acetamide using the procedure of Example 2, mp 153-156°C; Η ΝMR (DMSO-d₆) δ

2.05 (s, 3H), 2.78 (dd, J = 6.2, 14.1 Hz, IH), 2.89 (dd, J = 4.2, 14.3 Hz, IH), 3.10-

3.21 (m, 2H), 3.26-3.37 (m, 2H), 3.47-3.64 (m, 4H), 3.71-3.77 (m, IH), 3.89 (dd, J =

4.8, 9.9 Hz, IH), 4.31 (dd, J = 5.3, 12.1 Hz, IH), 4.38 (d, J = 7.7 Hz, IH), 4.53-4.60 (m, 2H), 4.68-4.77 (m, 2H), 5.07 (d, J = 4.0 Hz, IH), 5.27 (d, J = 5.5 Hz, IH), 5.34

(d, J = 5.3 Hz, IH), 5.55 (d, J = 2.9 Hz, IH), 5.77 (d, J = 6.2 Hz, IH), 7.16-7.28 (m, 6H), 7.40 (d, J = 8.1 Hz, IH), 7.52 (t, J = 7.7 Hz, 2H), 7.62-7.67 (m, 2H), 7.98 (dd, J = 0.7, 7.9 Hz, 2H), 9.50 (s, IH): IR (KBr) 3480, 3370, 2910, 1725, 1695, 1590, 1525, 1450, 1425, 1380, 1355, 1310, 1275, 1250, 1235, 1140, 1120, 1075, 1050, 1035, and 715 cm^"1; mass spectrum [(-) FAB], m/z 728 (M - H)^"; Anal. Calcd. for C₃₆H₄₀C1NO₁₃: C, 59.22; H, 5.52; N, 1.92, Found: C, 58.93; H, 5.45: N, 1.86.

Example 18

N-(2-Chloro-5-r(4'.6'-O-((lR)-3-cvano-DroDylidene -β-D-maltosyloxy)-methyll- phenyl } -acetamide

The title compound was prepared as a tan solid (0.101 g, 18%) from N-[2- chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-acetamide using 3-cyanopropionalde- hyde dimethyl acetal and the procedure of Example 10, mp 185-188 °C; Η ΝMR (DMSO-J₆) δ 1.82-1.89 (m, 2H), 2.07 (s, 3H), 2.47-2.55 (m, 2H), 3.04-3.11 (m, IH), 3.15 (t, J = 9.2 Hz, IH), 3.24-3.59 (m, 8H), 3.65-3.71 (m, IH), 3.99 (dd, J = 4.6, 9.9 Hz, IH), 4.28 (d, J = 7.7 Hz, IH), 4.62-4.67 (m, 2H), 4.67 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.10 (d, J = 3.7 Hz, IH), 5.24 (dd, J = 5.3, 7.2 Hz, 2H), 5.48 (d, J = 3.3 Hz, IH), 5.58 (d, J = 6.6 Hz, IH), 7.22 (d, J = 1.8, 8.1 Hz, IH), 7.44 (8.1 Hz, IH), 7.65 (s, IH), 9.52 (s, IH); IR (KBr) 3540, 3410, 3120, 2930, 2850, 2230, 1685, 1590, 1540, 1450, 1425, 1420, 1370, 1320, 1255, 1150, 1130, 1100, 1065, 1050, 1020, 995, and 890 cm^'1; mass spectrum [(+) FAB], m/z 611 (M + Νa)⁺; Anal. Calcd. for C₂₅H₃₃C1N₂O₁₂ - 0.5 H₂O: C. 50.21; H, 5.73: N, 4.68, Found: C. 50.32; H, 5.51; N, 4.84.

Example 19

N-(5-ir6-O-Benzoyl-4'.6'-O-((lR)-3-cvanopropylidene)-β-D-maltosyloxyl-methyll- 2-chloro-phenyl ) -acetamide

The title compound was prepared as a white solid (0.038 g, 46%) from N-{2- chloro-5-[(4',6'-O-((lR)-3-cyano-propylidene)-β-D-maltosyloxy)-methyl]-phenyl}- acetamide using the procedure of Example 2, mp 164-166 °C; Η ΝMR (DMSO-J₆) δ 1.79-1.86 (m, 2H). 2.04 (s. 3H), 2.48-2.52 (m, 2H), 3.13 (t, J = 9.2 Hz, IH), 3.14- 3.20 (m, IH), 3.27-3.40 (m, 2H), 3.46-3.60 (m, 4H). 3.71-3.77 (m, IH), 3.93 (dd, J = 4.6, 9.9 Hz, IH), 4.30 (dd, J = 5.3, 12.1 Hz, IH), 4.38 (d. J = 7.9 Hz, IH), 4.55-4.62 (m, 2H), 4.64 (ABq. J = 12.5 Hz, Δδ = 0.14, 2H), 5.08 (d, J = 3.7 Hz, IH), 5.28 (d, J = 5.1 Hz, IH), 5.35 (d, J = 5.3 Hz, IH), 5.55 (d, J = 2.9 Hz, IH), 5.77 (d, J = 6.2 Hz, IH), 7.18 (dd, J = 1.5, 8.1 Hz, IH), 7.40 (d, J = 8.1 Hz, IH), 7.53 (t, J = 7.9 Hz, 2H), 7.62-7.68 (m, 2H), 7.98 (dd, J = 1.5, 8.3 Hz, 2H), 9.50 (s, IH); IR (KBr) 3450, 3380, 3320, 2920, 2880, 2240, 1725, 1710, 1670, 1610, 1590, 1530, 1440, 1420, 1370, 1310, 1275, 1125, 1100, 1060, 1030, 1020, and 720 cm^"1; mass spectrum [(-) FAB], m/z 691 (M - H); Anal. Calcd. for C₃₂H₃₇ClN₂O₁₃: C, 55.45; H, 5.38; N, 4.04, Found: C, 55.25; H, 5.44; N, 3.90.

Example 20 N-12-Chloro-5-l(4'.6'-6'-((lR -3-ethoxy-proDylidene)-B-D-maltosyloxy)-methyll- phenyll-acetamide

The title compound was prepared as a white solid (0.080 g, 14%) from N-[2- chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-acetamide using 3-chloropropionalde- hyde diethyl acetal and the procedure of Example 10, mp 149.5-153 °C; Η ΝMR (DMSO-J₆) δ 1.08 (t, J = 7.0 Hz, 3H), 1.70-1.81 (m, 2H), 2.07 (s, 3H), 2.44-2.54 (m, 2H), 3.04-3.17 (m, 2H), 3.24-3.60 (m, 10H), 3.64-3.71 (m, IH), 3.95 (dd, J = 4.8, 9.9 Hz, IH), 4.28 (d, J = 7.7 Hz, IH), 4.63 (dd, J = 5.7, 9.7 Hz, 2H), 4.67 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 5.09 (d, J = 3.7 Hz, IH), 5.19 (d, J = 5.3 Hz, IH), 5.23 (d, J = 5.3 Hz, IH), 5.46 (d, J = 3.3 Hz, IH), 5.56 (d, J = 6.6 Hz, IH), 7.22 (dd, J = 1.8, 8.1 Hz, IH), 7.44 (d, J = 8.3 Hz, IH), 7.65 (s, IH), 9.51 (s, IH); IR (KBr) 3500, 3420, 2970, 2920, 2840, 1690, 1590, 1530, 1440, 1420, 1370, 1320, 1250, 1110, 1070, and 1020 cm^"1; mass spectrum [(-) FAB], m/z 606 (M - H)^'; Anal. Calcd. for C₂₆H₃₈ClΝO_I3 • 1.5 R.O: C, 49.17; H, 6.51; N, 2.21, Found: C, 48.89; H, 5.93; N, 2.27.

Example 21

N-(5-( r6-O-Benzoyl-4'.6'-O-((lR)-3-ethoxypropylidene)-β-D-maltosyloxyl-methvI}- 2-chloro-phenyl } -acetamide

The title compound was prepared as a off-white solid (0.015 g, 26%) from N- {2-chloro-5-[(4',6'-O-((lR)-3-ethoxy-propylidene)-β-D-maltosyloxy)-methyl]- phenyl}-acetamide using the procedure of Example 2, mp >94 °C (decomp.); Η ΝMR (DMSO-J₆) δ 1.07 (t, J = 7.0 Hz, 3H), 1.69-1.78 (m, 2H), 2.04 (s, 3H), 2.44- 2.54 (m, 2H), 3.09 (t, J = 9.7 Hz, IH), 3.14-3.21 (m, IH), 3.26-3.42 (m, 4H), 3.45- 3.60 (m, 4H), 3.71-3.76 (m, IH), 3.91 (dd, J = 4.4, 9.7 Hz, IH), 4.30 (dd, J = 5.3, 12.3 Hz, IH), 4.37 (d, J = 7.7 Hz, IH), 4.54-4.61 (m, 2H), 4.64 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.07 (d, J = 4.0 Hz, IH), 5.25 (d, J = 5.3 Hz, IH), 5.34 (d, J = 5.3 Hz, IH), 5.55 (d, J = 2.6 Hz, IH), 5.77 (d, J = 6.2 Hz, IH), 7.18 (d, J = 8.3 Hz, IH), 7.40 (d, J = 8.1 Hz, IH), 7.53 (t, J = 7.9 Hz, 2H), 7.62-7.68 (m, 2H), 7.98 (d, J = 7.2 Hz, 2H), 9.50 (s, IH); IR (KBr) 3410, 2910, 2850, 1720, 1670, 1590, 1530, 1440, 1420, 1370, 1280, 1115, 1060, 1025, and 720 cm^"1; mass spectrum [(+) FAB], m/z 734 (M + Na)⁺; Anal. Calcd. for C₃₃H₄₂ClNO₁₄ • 4.0 H₂O: C, 50.54; H, 6.43; N, 1.79, Found: C, 50.22; H, 5.28; N, 1.77.

Example 22

N-(2-Chloro-5-{ [4'.6'-O-(4-pyridinemethylidene)-β-D-maltosyl]-oxy-methyl}- phenvD-acetamide To a stirred solution of N-[2-chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]- acetamide (0.500 g, 0.954 mmol) in DMF (25 mL) at rt was added 4- pyridinecarboxaldehyde (0.446 mL, 4.67 mmol) followed by concentrated H_jSO,, (0.105 mL, 3.78 mmol). The reaction mixture was heated to 110 °C for 18 h. The reaction was then quenched with K₂CO₃ (1.40 g, 10.1 mmol) with an additional 0.5 h heating at 60 °C. At this point, the solution was filtered hot, and the solvent was distilled off using the high vac. The residue was purified by flash chromatography (80:6:3 to 5:2:1 EtOAc:EtOH:H-O gradient) to afford the product (0.050 g, 9%) as a yellow solid, mp >112 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.07 (s, 3H), 3.05-3.13 (m, IH), 3.27-3.49 (m, 4H), 3.49-3.62 (m, 3H), 3.66-3.75 (m, 3H), 4.14 (dd, J = 12.5, 17.5 Hz, IH), 4.29 (d, J = 7.7 Hz, IH), 4.67 (t, J = 5.9 Hz, IH), 4.67 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 5.16 (d, J = 3.7 Hz, IH), 5.25 (d, J = 5.3 Hz, IH), 5.35 (d, J = 4.8 Hz, IH), 5.50 (d, J = 3.3 Hz, IH), 5.61-5.65 (m, 2H), 7.22 (dd, J = 1.8, 8.3^" Hz, IH), 7.42-7.47 (m, 3H), 7.65 (s, IH), 8.60 (d, J = 5.9 Hz, 2H), 9.52 (s, IH); IR (KBr) 3390, 2920, 2830, 1670, 1620, 1590, 1530, 1450, 1420, 1380, 1310, 1270, 1245, 1180, 1145, 1075, 1055, 1030, and 755 cm^"1; mass spectrum [(-) FNB], m/z 611 (M - H)^"; Anal. Calcd. for C₂₇H₃₃ClΝ₂O₁₂ • 4.25 H.O: C, 47.03; H, 6.07; N, 4.06, Found: C, 46.63; H, 5.00; N, 3.60. Example 23

Benzoic acid 6-(3-acetylamino-4-chloro-benzoyloxy)-3-(7,8-dihvdroxy-2-pyridin-4- yl-hexahvdro-pyranor3.2-diπ.3]dioxin-6-yloxy)-4.5-dihydroxy-tetrahvdro-pyran-2- ylmethyl ester

The title compound was prepared as a off-white solid (0.025 g, 46%) from N- (2-chloro-5-{[4',6'-O-(4-pyridinemethylidene)-β-D-maltosyl]-oxy-methyl}-phenyl)- acetamide using the procedure of Example 2, mp 260-261.5 °C; 'H ΝMR (DMSΟ-d₆) δ 2.04 (s, 3H), 3.15-3.22 (m, IH), 3.25-3.43 (m, 2H), 3.51 (td, J = 2.9, 8.8 Hz, IH), 3.55-3.64 (m, 3H), 3.68-3.77 (m, 2H), 4.07 (dd, J = 4.6, 9.7 Hz, IH), 4.34 (dd, J = 5.3, 12.3 Hz, IH), 4.39 (d, J = 7.7 Hz, IH), 4.56-4.62 (m, IH), 4.65 (ABq, J = 12.3 Hz, Δδ = 0.14, 2H), 5.15 (d, J = 4.0 Hz, IH), 5.35 (d, J = 5.3 Hz, IH), 5.39 (d, J = 5.1 Hz, IH), 5.56 (d, J = 3.1 Hz, IH), 5.58 (s, IH), 5.79 (d, J = 6.2 Hz, IH), 7.18 (dd, J = 2.0, 8.3 Hz, IH), 7.38-7.45 (m, 3H), 7.53 (t, J = 7.9 Hz, 2H), 7.62-7.68 (m, 2H), 7.97-8.01 (m, 2H), 8.59 (d, J = 4.6 Hz, 2H), 9.49 (s, IH); IR (KBr) 3460, 3310, 3240, 2910, 2830, 1725, 1665, 1620, 1590, 1530, 1420, 1375, 1275, 1140, 1075, 1055, 1030, and 715 cm^"1; mass spectrum [(+) FAB], m/z 717 (M + H)⁺, 739 (M + Νa)⁺; Anal. Calcd. for C₃₄H₃₇ClN₂O₁₃ • 1.5 H,O: C, 54.88; H, 5.42; N, 3.76, Found: C, 54.55; H, 4.98; N, 3.68.

Example 24 N-{5-r(4'.6'-O-Benzylidene-β-D-maltosyloxy)-methyll-2-chloro-phenyl)-acetamide

To a stirred solution of N-[2-chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]- acetamide (14.15 g, 27.0 mmol) in DMF (325 mL) at rt was added benzaldehyde dimethyl acetal (8.11 mL, 54.0 mmol) dropwise followed by TsOH-H₂O (2.57 g, 13.5 mmol). The reaction mixture was heated to 60 °C for 6 h and then quenched with K,CO₃ (1.87 g, 13.5 mmol) with an additional 0.5 h heating at this temperature. At this point, the solution was filtered hot, and the solvent was distilled off using the high vac. The residue was purified by flash chromatography (80:2:1 to 20:2:1 EtOAc:EtOH:H₂O gradient) to afford the product (10.8 g, 65%) as a white solid, mp 143-147 °C; Η ΝMR (DMSO-J₆) δ 2.08 (s, 3H), 3.07-3.12 (m, IH), 3.28-3.50 (m, 5H), 3.51-3.60 (m, 2H), 3.64-3.75 (m, 3H), 4.10-4.12 (m, IH), 4.30 (d, J = 7.9 Hz, 1H), 4.67 (t, 5.9 Hz, IH), 4.68 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.25 (d, J = 5.1 Hz, IH), 5.30 (d, J = 5.3 Hz, IH), 5.51 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.63 ( d, J = 6.8 Hz, IH), 7.22 (dd, J = 1.5, 8.3 Hz, IH), 7.35-7.38 (m, 3H), 7.42-7.46 (m, 3H), 7.66 (s, IH), 9.53 (s, IH); IR (KBr) 3500, 3410, 2910, 2850, 1700, 1600, 1550, 1440, 1425, 1375, 1310, 1230, 1150, 1070, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 634 (M + Na)⁺; Anal. Calcd. for C₂₈H₃₄ClNO₁₂ • 1.0 H : C, 53.38; H, 5.76; N, 2.22, Found: C, 53.58; H, 5.62; N, 2.25.

Example 25 N-{5-r(4'.6'-O-Benzylidene-2.2'.3.3'.6-penta-O-acetyl-β-D-maltosyl-oxy)-methyll-2- chloro-phenyl 1 -acetamide

To a stirred solution of N-{5-[(4',6'-O-benzylidene-β-D-maltosyloxy)- methyl]-2-chloro-phenyl} -acetamide (0.230 g, 0.376 mmol) and triethylamine (0.576 mL, 4.14 mmol) in DMF (5 mL) at rt was added dropwise acetic anhydride (0.195 mL, 2.07 mmol) followed by a catalytic amount of DMAP (0.023 g, 0.188 mmol). After 18 h, the mixture was concentrated, and the resulting residue was diluted with EtOAc (100 mL). This layer was washed with 1 Ν HC1 (10 mL), sat. aq. ΝaHCO₃ (10 mL), and brine (10 mL) and then dried (Na₂SO₄). After concentration, the residue was purified by flash chromatography (10:90 to 80:20 EtOAcφetroleum ether gradient) to afford the product (0.181 g, 59%) as an off-white solid, mp 99-102 °C; Η NMR (OMSO-d₆) δ 1.92 (s, 3H). 1.94 (s, 3H), 1.97 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 2.08 (s, 3H), 3.67-3.75 (m, IH), 3.89 (t, J = 9.4 Hz, IH), 3.95-4.04 (m, 3H), 4.12-4.19 (m, 2H), 4.39 (dd, J = 1.5, 11.9 Hz, IH), 4.54 (d, J = 12.7 Hz, IH), 4.68-4.74 (m, 2H), 4.85-4.89 (m, 2H), 5.24 (t, J = 10.1 Hz, IH), 5.28 (d, J = 4.0 Hz, IH), 5.32 (d, J = 9.4 Hz, IH), 5.62 (s, IH), 7.07 (dd, J = 1.8, 8.1 Hz, IH), 7.36 (s, 5H), 7.45 (d, J = 8.3 Hz, IH), 7.62 (s, IH), 9.50 (s, IH); IR (KBr) 3390, 2920, 2850, 1755, 1690, 1600, 1530, 1410, 1375, 1230. and 1050 cm '; mass spectrum [(+) FAB], m/z 822 (M + H)⁺, 844 (M + Na)⁺; Anal. Calcd. for C₃₈H₄₄ClNO₁₇ • 1.0 H₂O: C, 54.32; H, 5.52; N, 1.67, Found: C, 54.68; H. 5.44: N, 1.57. Example 26

N-(5-r(6-O-Benzoyl-4'.6'-O-benzylidene-β-D-maltosyl-oxy)-methyl1-2-chloro- phenyl} -acetamide

The title compound was prepared as a white solid (4.04 g, 69%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using a procedure similar to Example 2, mp 185-187 °C; Η ΝMR (DMSO-J₆) δ 2.05 (s, 3H), 3.16-3.22 (m, IH), 3.32-3.42 (m, 2H), 3.48-3.64 (m, 4H), 3.71 (dd, J = 4.8, 9.7 Hz, IH), 3.74-3.79 (m, IH), 4.05 (dd, J = 4.8, 10.3 Hz, IH), 4.35 (dd, J = 5.3, 12.3 Hz, IH), 4.39 (d, J = 7.7 Hz, IH), 4.58-4.63 (m, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.14 (d, 4.0 Hz, IH), 5.34 (t, J = 5.1 Hz, 2H), 5.52 (s, IH), 5.57 (d, J = 3.1 Hz, IH), 5.79 (d, J = 6.2 Hz, IH), 7.19 (dd, J = 2.0, 8.3 Hz, IH), 7.32-7.38 (m, 3H), 7.38- 7.45 (m, 3H), 7.51-7.55 (m, 2H), 7.63-7.68 (m, 2H), 7.98-8.01 (m, 2H), 9.49 (s, IH); IR (KBr) 3380, 3290, 2890, 2870, 1730, 1670, 1600, 1540, 1440, 1420, 1375, 1275, 1070, 1050, 1025, 975, and 710 cm^"1; mass spectrum [(+) FAB], m/z 716/718 (M + H)⁺, 738/740 (M + Νa)⁺; Anal. Calcd. for C₃₅H₃₈ClNO₁₃: C, 58.70; H, 5.35; N, 1.96, Found: C, 58.53; H, 5.36; N, 1.94.

Example 27

(R)-N-r2-Chloro-5-rrr2.3-di-O-acetyl-6-O-benzoyl-4-O-r2.3-di-O-acetyl-4.6-O- (phenylmethylene)-α-D- glucopyranovsl] -β-D- glucopyranosyll oxyl -methyll- phenyl] acetamide

The title compound was prepared as a glassy white solid (0.048 g, 86%) from N-{5-[(6-O-benzoyl-4',6'-O-benzylidene-β-D-maltosyl-oxy)-methyl]-2-chloro- phenyl} -acetamide using a procedure similar to Example 25, mp 101-104 °C; Η ΝMR (DMSΟ-J₆) δ 1.94 (s, 3H), 1.95 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 2.05 (s, 3H), 3.61 (t, J = 9.7 Hz, IH), 3.70-3.76 (m, IH), 3.80 (dd, J = 4.6 Hz, IH), 3.86 (t, J = 9.4 Hz, IH), 4.13-4.22 (m, 2H), 4.46 (dd, J = 3.7, 12.5 Hz, IH), 4.64 (ABq, J = 12.7 Hz, Δδ = 0.14, 2H). 4.68 (d, J = 10.5 Hz, IH), 4.79 (dd, J = 8.1, 9.4 Hz, IH), 4.87-4.91 (m, 2H), 5.27 (t. J = 9.9 Hz, IH), 5.33-5.38 (m, 2H), 5.54 (s, IH), 7.04 (dd, J= 1.8, 8.1 Hz, IH). 7.28-7.36 (m, 5H), 7.41 (d, J = 8.3 Hz, IH), 7.52-7.57 (m, 2H), 7.61 (s, IH), 7.65-7.71 (m, IH), 8.03-8.07 (m, 2H), 9.48 (s, IH); IR (KBr) 3400, 2950, 2850, 1755, 1600. 1540. 1440, 1420, 1375, 1240, 1070, and 1030 cm^'1; mass spectrum [(+) FAB], m/z 884 (M + H)⁺, 906 (M + Na)⁺; Anal. Calcd. for C₄₃H₄₆ClNO₁₇: C, 58.41; H, 5.24; N, 1.58, Found: C, 58.24; H, 5.31; N, 1.59.

Example 28 (R)-N-12-Chloro-5-rrr6-O-(5-methoxy-1.5-dioxoDentvD-4-O-r4.6-O-

(phenylmethylene)-α-D-gΙucopyranovsll-β-D-glucopyranosylloxylmethyll- phenyl] acetamide

The title compound was prepared as a white foam (0.149 g, 50%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using methyl-4-(chloroformyl)-butyrate as the acid chloride and a procedure similar to Example 2, mp 79-81 °C; Η ΝMR (CDC1₃) δ 1.90-1.98 (m, 2H), 2.13 (s. 3H), 2.35- 2.43 (m, 4H), 3.41 (t, J = 9.4 Hz, IH), 3.47-3.73 (m, 6H), 3.65 (s, 3H), 3.82-3.89 (m, 2H), 3.93 (t, d = 9.4 Hz, IH), 4.06-4.26 (bs, IH), 4.20 (dd, J = 4.6, 12.3 Hz, IH), 4.28 (q, J = 5.1, 10.5 Hz, IH), 4.34-4.40 (m, 2H), 4.70 (ABq, J = 12.5 Hz, Δδ = 0.23, 2H), 4.76-4.94 (bs, IH), 5.04 (d, J = 4.0 Hz, IH), 5.20-5.36 (bs, IH), 5.47 (s, IH), 7.01 (dd, J = 1.8, 8.6 Hz, IH), 7.30 (d, J = 8.3 Hz, IH), 7.33-7.35 (m, 3H), 7.46-7.48 (m, 2H), 7.64 (s, IH), 8.32 (s, IH); IR (KBr) 3400, 2930, 2880, 1735, 1600, 1540, 1450, 1420, 1375, 1310, 1250, 1200, 1160, 1070, and 1025 cm^"1; mass spectrum [(+) FAB], m/z 740 (M + H)⁺, 762 (M + Νa)⁺; Anal. Calcd. for C₃₄H₄₂ClNO₁₅ • 1.0 H,O: C, 53.86; H, 5.85; N, 1.85, Found: C, 53.51; H, 5.80; N, 1.73.

Example 29

4-Chloro-3-nitro-benzyl-4^,.6'-O-benyzlidene-β-D-maltoside step 1 4-Chloro-3-nitro-benzyl-β-D-maltoside

The title compound was prepared as a yellow powder (1.04 g, 97%) from 4- chloro-3-nitro-benzyl- β-D-maltoside heptaacetate using a procedure similar to step 4 of Example 1, mp 168-169 °C; Η NMR (DMSO-J₆) δ 3.03-3.13 (m, 2H), 3.20-3.38 (m, 4H), 3.41-3.49 (m, 3H), 3.55-3.64 (m, 2H), 3.68-3.75 (m, IH), 4.00-5.50 (bs. 7H), 4.31 (d. J = 7.7 Hz, IH), 4.79 (ABq, J = 13.6 Hz, Δδ = 0.17, 2H), 5.00 (d, J = 3.7 Hz, IH), 7.70-7.78 (m, 2H), 8.09 (d, J = 1.8 Hz, IH); IR (KBr) 3380, 2900. 1720, 1625. 1550. 1365, 1140, 1080, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 533/535 (M + Na)⁺; Anal. Calcd. for C₁₉H₂₆ClNO₁₃ • 1.0 H₂O: C, 43.07; H, 5.33; N, 2.64, Found: C, 43.11; H, 5.23; N, 2.58.

step 2 4-ChIoro-3-nitro-benzyl-4',6'-O-benyzlidene-β-D-maltoside

The title compound was prepared as a yellow solid (0.869 g, 74%) from 4- chloro-3-nitro-benzyl-β-D-maltoside using a procedure similar to Example 24, mp >122 °C (decomp.); Η NMR (DMSO-ύQ δ 3.11 (dd, J = 4.8, 8.8 Hz, IH), 3.30-3.42 (m, 4H), 3.46 (dd, J = 3.3, 9.0 Hz, IH), 3.49-3.60 (m, 2H), 3.64-3.75 (m, 3H), 4.12 (dd, J = 2.9, 8.1 Hz, IH), 4.33 (d, J = 7.7 Hz, IH), 4.65 (t, J = 5.7 Hz, IH), 4.80 (ABq, J = 13.6 Hz, Δδ = 0.16, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.29 (d, J = 5.1 Hz, IH), 5.34 (d, J = 5.1 Hz, IH), 5.53 (d, J = 3.1 Hz, IH), 5.57 (s, IH), 5.62 (d, J = 6.6 Hz, IH), 7.34-7.38 (m, 3H), 7.42-7.46 (m, 2H), 7.70-7.77 (m, 2H), 8.10 (d, J = 1.6 Hz, IH); IR (KBr) 3390, 2920, 2870, 1625, 1610, 1590, 1550, 1440, 1420, 1360, 1200, 1140, 1070, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 600/602 (M + H)⁺, 622/624 (M + Na)⁺; Anal. Calcd. for C₂₆H₃₀C1NO₁₃ • 0.5 H₂O: C, 51.28; H, 5.13; N, 2.30, Found: C, 51.13; H, 5.21; N, 2.30.

Example 30 4-Chloro-3-nitro-benzyl-6-O-benzoyl-4'.6'-O-benyzlidene-β-D-maltoside

The title compound was prepared as a off-white glass (0.155 g, 49%) from 4- chloro-3-nitro-benzyl-4',6'-O-benyzlidene-β-D-maltoside using a procedure similar to Example 2, mp 111-114 °C; Η NMR (DMSΟ--i₆) δ 3.19-3.26 (m, IH), 3.28-3.43 (m, 2H), 3.51-3.65 (m, 4H), 3.68-3.75 (m, IH), 3.77-3.81 (m, IH), 4.04 (dd, J = 4.6, 9.9 Hz, IH), 4.34 (dd, J = 5.1, 12.3 Hz, IH), 4.45 (d, J = 7.9 Hz, IH), 4.59 (d, J = 12.3 Hz, IH), 4.79 (ABq, J = 13.6 Hz, Δδ = 0.10, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.35 (d, J = 5.3 Hz, IH), 5.46 (d, J = 5.1 Hz, IH), 5.52 (s, IH), 5.60 (d, J = 3.1 Hz, IH), 5.80 (d, J = 6.2 Hz, IH), 7.33-7.37 (m, 3H), 7.39-7.43 (m, 2H), 7.50-7.55 (m, 2H), 7.63- 7.68 (m, IH), 7.68-7.73 (m, 2H), 7.97 (dd, J = 1.1, 8.1 Hz, 2H), 8.08 (s, IH); IR (KBr) 3400, 2910, 2860, 1725, 1610, 1540, 1440, 1360, 1325, 1275, 1070, and 1025 cm^"1; mass spectrum [(+) FAB], m/z 704 (M + H)\ 726 (M + Na)⁺; Anal. Calcd. for C₃₃H₃₄ClNO₁₄ • 1.0 H₂O: C, 54.89; H, 5.03; N, 1.94, Found: C, 54.72; H, 4.56; N, 1.91.

Example 31 (R)-(4-Chloro-3-nitrophenvDmethyl-2.3-di-O-acetyl-6-O-benzoyl-4-O-12.3-di-O- acetyl-4.6-O-(phenylmethylene)-α-D-glucopyranosyll-β-D-glucopyranoside

The title compound was prepared as a off-white solid (0.0773 g, 84%) from 4- chloro-3-nitro-benzyl-6-O-benzoyl-4',6'-O-benyzlidene-β-D-maltoside using a procedure similar to Example 25, mp 138-140 °C; Η NMR (OMSO-d₆) δ 1.95 (s, 3H), 1.96 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 3.61 (t, J = 9.4 Hz, IH), 3.69-3.77 (m, IH), 3.79 (dd, J = 4.6, 9.4 Hz, IH), 3.86 (t, J = 9.4 Hz, IH), 4.13-4.25 (m, 2H), 4.44 (dd, J = 3.5, 12.3 Hz, IH), 4.66-4.69 (m, IH), 4.71 (d, J = 13.6 Hz, IH), 4.80-4.84 (m, 2H), 4.89 (dd, J = 4.2, 10.3 Hz, IH), 4.96 (d, J = 7.9 Hz, IH), 5.27 (t, J = 9.9 Hz, IH), 5.34-5.40 (m, 2H), 5.54 (s, IH), 7.27-7.37 (m, 5H), 7.51-7.56 (m 2H), 7.57 (dd, J = 2.0, 8.3 Hz, IH), 7.65-7.70 (m, IH), 7.72 (d, J = 8.3 Hz, IH), 7.93 (d, J = 2.0 Hz, IH), 8.01-8.05 (m, 2H); IR (KBr) 3440, 2950, 2830, 1755, 1620, 1550, 1440, 1410, 1370, 1320, 1240, 1160, 1120, 1070, 1030, and 990 cm^'1; mass spectrum [(+) FAB], m/z 872 (M + H)⁺, 894 (M + Na)⁺; Anal. Calcd. for C₄₁H₄₂ClNΟ₁₈ • 0.5 H₂O: C, 55.88; H, 4.92; N, 1.59, Found: C, 55.90; H, 4.80; N, 1.56.

Example 32

Nicotinic acid 6-(4-chloro-3-nitro-benzyloxy)-3-(7.8-dihvdroxy-2-phenyl-hexahvdro- pyranor3.2-diπ.31dioxin-6-yloxy)-4.5-dihvdroxy-tetrahvdro-pyran-2-ylmethyl ester The title compound was prepared as a white foam (0.211 g, 45%) from 4- chloro-3-nitro-benzyl-4',6'-O-benyzlidene-β-D-maltoside using nicotinoyl chloride hydrochloride and a procedure similar to Example 2 (except compound purified directly with flash chromatography), mp >105 °C (decomp.); Η NMR (DMSO-J₆) δ 3.21-3.28 (m, IH), 3.32-3.42 (m, 2H), 3.51-3.60 (m, 3H), 3.65 (t, J = 9.2 Hz, IH), 3.67-3.74 (m, IH), 3.78-3.83 (m, IH), 4.01-4.06 (m, IH), 4.38 (dd, J = 5.1, 12.3 Hz, IH), 4.45 (d, J = 7.9 Hz, IH), 4.58-4.64 (m, IH), 4.79 (ABq, J = 13.6 Hz, Δδ = 0.09, 2H), 5.17 (d, J = 3.7 Hz, IH), 5.35 (d, J = 5.3 Hz, IH), 5.46 (d, J = 5.3 Hz, IH), 5.52 (s, IH), 5.61 (d, J = 3.1 Hz, IH), 5.82 (d, J = 6.2 Hz, IH), 7.34-7.37 (m, 3H), 7.39- 7.43 (m, 2H), 7.54-7.59 (m, IH), 7.68-7.71 (m, 2H), 8.08 (d, J = 1.3 Hz, IH), 8.31 (d, J = 7.9 Hz, IH), 8.78-8.88 (bs, IH), 9.05-9.19 (bs, IH); IR (KBr) 3400, 2900, 2870, 1725, 1600, 1540, 1440, 1410, 1360, 1285, 1070, 1030, 740, and 690 cm^"1; mass spectrum [(+) FAB], m/z 705/707 (M + H)⁺; Anal. Calcd. for C₃₂H₃₃ClN₂O₁₄ • 1.0 H_jO: C, 53.15; H, 4.88; N, 3.87, Found: C, 53.33; H, 4.78; N, 3.72.

Example 33

(R)-(4-Chloro-3-nitrophenyl)methyl 4-r2.3-di-O-acetyl-4,6-O-(phenylmethylene)-α- D-glucopyranosyl]-β-D-gIucopyranoside 2,3-diacetate 6-(3-pyridinecarboxylate) The title compound was prepared as a white foam (0.123 g, 95%) from nicotinic acid 6-(4-chloro-3-nitro-benzyloxy)-3-(7,8-dihydroxy-2-phenyl-hexahydro- pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro-pyran-2-ylmethyl ester using a procedure similar to Example 25, mp >101 °C (decomp.); Η NMR (DMSO- d₆) δ 1.95 (s, 3H), 1.96 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 3.64 (t, J = 9.4 Hz, IH), 3.69-3.81 (m, 2H), 3.87 (t, J = 9.4 Hz, IH), 4.17 (dd, J = 3.1, 5.7 Hz, IH), 4.27 (t, J = 9.4 Hz, IH), 4.47 (dd, J = 4.0, 12.5 Hz, IH), 4.69-4.75 (m, 2H), 4.80-4.91 (m, 3H), 4.96 (d, J = 8.1 Hz, IH), 5.26 (t, J = 10.1 Hz, IH), 5.33-5.39 (m, 2H), 5.55 (s, IH), 7.29-7.36 (m, 5H), 7.55-7.59 (m, 2H), 7.72 (d, J = 8.3 Hz, IH), 7.93 (d, J = 2.0 Hz, IH), 8.36 (dt, J = 2.2, 7.9 Hz, IH), 8.84 (dd, J = 1.8, 4.8 Hz, IH), 9.16 (dd, J = 0.9, 2.2 Hz, IH); IR (KBr) 3440, 2930, 2860, 1755, 1600, 1540, 1420, 1375, 1280, 1240, 1140, 1070, 1060, 1030, and 995 cm^"1; mass spectrum [(+) FAB], m/z 873/875 (M + H)⁺, 895/897 (M + Na)⁺; Anal. Calcd. for C₄₀H_4IC1N₂O₁₈ • 1.25 FLO: C, 53.64; H, 4.89; N, 3.13, Found: C, 53.46; H, 4.51; N, 2.96.

Example 34

4-Methoxy-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7.8-dihvdroxy-2- phenyl-hexahvdro-pyranor3.2-diri.31dioxin-6-yloxy -4.5-dihvdroxy-tetrahvdro- pyran-2-ylmethyl ester

The title compound was prepared as a white foam (0.284 g, 47%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using

/?-anisoyl chloride and a procedure similar to Example 2, mp >117 °C (decomp.); Η

ΝMR (DMSO-J) δ 2.05 (s, 3H), 3.15-3.21 (m, IH), 3.35 (d, J = 9.4 Hz, IH), 3.35- 3.42 (m, IH), 3.48-3.61 (m, 4H), 3.67-3.76 (m, 2H), 3.82 (s, 3H), 4.05 (dd, J = 4.8, 9.9 Hz, IH), 4.29 (dd, J = 5.5, 12.3 Hz, IH), 4.38 (d, J = 7.9 Hz, IH), 4.55-4.60 (m, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.13 (d, J = 3.7 Hz, IH), 5.34 (dd, J = 4.0, 5.3 Hz, 2H), 5.52 (s, IH), 5.56 (d, J = 2.9 Hz, IH), 5.77 (d, J = 6.2 Hz, IH), 7.02-7.06 (m, 2H), 7.19 (dd, J = 2.0, 8.3 Hz, IH), 7.33-7.37 (m, 3H), 7.39-7.44 (m, 3H), 7.64 (s, IH), 7.94 (dt, J = 2.9, 9.9 Hz, 2H), 9.50 (s, IH); IR (KBr) 3410, 3000, 2910, 2880, 1720, 1610, 1580, 1530, 1515, 1450, 1420, 1375, 1255, 1160, 1070, and 1025 cm^"1; mass spectrum [(+) FNB], m/z 746/748 (M + H)⁺, 768/770 (M + Νa)\ 784/786 (M + K)⁺; Anal. Calcd. for C₃₆H₄₀C1NO₁₄ • 2.0 H₂O: C, 55.28; H, 5.67; N, 1.79, Found: C, 55.38; H, 5.28; N, 1.72.

Example 35

4-Methoxy-benzoic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7.8- diacetoxy-2-phenyl-hexahvdro-pyranor3.2-diπ.31dioxin-6-yloxy)-tetrahvdro-pyran- 2-ylmethyl ester

The title compound was prepared as a white foam (0.142 g, 81%) from 4- methoxy-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro- pyran-2-ylmethyl ester using a procedure similar to Example 25, mp >110 °C (decomp.); Η NMR (DMSO--i₆) δ 1.94 (s, 3H), 1.95 (s, 3H), 1.98 (s, 3H), 1. 99 (s, 3H), 2.06 (s, 3H), 3.61 (t, J = 9.7 Hz, IH), 3.68-3.75 (m, IH), 3.80 (dd, J = 4.6, 9.4 Hz, IH), 3.82 (s, 3H), 3.82-3.89 (m, IH), 4.11-4.16 (m, IH), 4.17 (q, 9.7 Hz, IH), 4.40 (dd, J = 3.3, 12.3 Hz, IH), 4.63 (ABq, J = 12.7 Hz, Δδ = 0.15, 2H), 4.64 (d, J = 10.8 Hz, IH), 4.77 (dd, J = 7.9, 9.4 Hz, IH), 4.86-4.91 (m, 2H), 5.26 (t, J = 9.9 Hz, IH), 5.32-5.38 (m, 2H), 5.54 (s, IH), 7.06 (dt, J = 2.9, 9.7 Hz, 3H), 7.29-7.37 (m, 5H), 7.42 (d, J = 8.1 Hz, IH), 7.61 (s, IH), 7.99 (dt, J = 2.9, 9.9 Hz, 2H), 9.49 (s, IH); IR (KBr) 3400, 2950, 2840, 1755, 1700, 1600, 1580, 1535, 1515, 1450, 1420, 1375, 1240, 1165, 1110, 1070, 1055, and 1030 cm^'1; mass spectrum [(+) FAB], m/z 914/916 (M + H)⁺, 936/938 (M + Na)⁺; Anal. Calcd. for C₄₄H₄₈ClNO₁₈ • 1.0 H₂O: C, 56.68; H, 5.41; N, 1.50, Found: C, 56.37; H, 5.08; N, 1.48. Example 36

4-Chloro-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihvdroxy-2- phenyl-hexahvdro-pyranor3.2-d111,31dioxin-6-yloxy)-4.5-dihvdroxy-tetrahvdro- pyran-2-ylmethyl ester The title compound was prepared as a white foam (0.372 g, 61%) from N-{5-

[(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using 4-chlorobenzoyl chloride and a procedure similar to Example 2, mp >113 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.05 (s, 3H), 3.16-3.21 (m, IH), 3.28-3.41 (m, 2H), 3.48-3.62 (m, 4H), 3.69 (dd, J = 5.1, 9.9 Hz, IH), 3.76 (ddd, J = 1.5, 4.6, 9.4 Hz, IH), 4.04 (dd, J = 4.8, 9.9 Hz, IH), 4.33-4.40 (m, 2H), 4.55-4.60 (m, 2H), 4.73 (d, J = 12.5 Hz, IH), 5.13 (d, J = 4.0 Hz, IH), 5.35 (t, J = 5.3 Hz, 2H), 5.52 (s, IH), 5.58 (d, J = 2.9 Hz, IH), 5.81 (d, J = 6.2 Hz, IH), 7.19 (dd, J = 2.0, 8.3 Hz, IH), 7.33-7.37 (m, 3H), 7.38-7.43 (m, 3H), 7.59 (dt, J = 2.4, 9.2 Hz, 2H), 7.64 (s, IH), 7.99 (dt, J = 2.4, 9.0 Hz, 2H), 9.50 (s, IH); IR (KBr) 3410, 2910, 2870, 1725, 1590, 1530, 1440, 1420, 1375, 1270, 1070, 1025, and 760 cm^"1; mass spectrum [(+) FAB], m/z 750/752/754 (M + H)⁺, 772 (M + Νa)⁺, 788/790/792 (M + K)⁺; Anal. Calcd. for C₃₅H₃₇CLNO₁₃ • 1.5 JLO: C, 54.06; H, 5.18; N, 1.80, Found: C, 53.76; H, 4.78; N, 1.77.

Example 37

4-Chloro-benzoic acid 4.5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy -3-(7.8- diacetoxy-2-phenyl-hexahvdro-pyranol3.2-diri.31dioxin-6-yloxy)-tetrahvdro-pyran- 2-ylmethyl ester

The title compound was prepared as a white foam (0.225 g, 72%) from 4- chloro-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro- pyran-2-ylmethyl ester using a procedure similar to Example 25, mp 114-115 °C; Η

NMR (DMSO-J₆) δ 1.94 (s, 3H), 1.95 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 2.05 (s, 3H),

3.62 (t, J = 9.2 Hz, IH), 3.68-3.74 (m, IH), 3.79 (dd, J = 4.2, 9.2 Hz, IH), 3.86 (t, J = 9.4 Hz, IH), 4.13-4.19 (m, IH), 4.18 (q, J = 9.4, IH), 4.47 (dd, J = 3.5, 12.3 Hz, IH),

4.63 (ABq, J = 12.7 Hz, Δδ = 0.14, 2H), 4.66 (d, J = 10.8 Hz, IH), 4.79 (dd, J = 8.1, 9.2 Hz, IH), 4.86-4.91 (m, 2H), 5.26 (t, J = 9.9 Hz, IH), 5.32-5.38 (m, 2H), 5.54 (s, 1H), 7.05 (dd, J = 1.8, 8.3 Hz, IH), 7.27-7.31 (m, 2H), 7.32-7.36 (m, 3H), 7.42 (d, J = 8.3 Hz, IH), 7.58-7.63 (m, 3H), 8.02-8.06 (m, 2H), 9.49 (s, IH); IR (KBr) 3410, 2950, 2860, 1755, 1690, 1600, 1530, 1450, 1420, 1375, 1260, 1140, 1070, 1055, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 918/920/922 (M + H)\ 940/942/944 (M + Na)⁺; Anal. Calcd. for C₄₃H₄₅CLNO₁₇ • 1.0 H₂O: C, 55.13; H, 5.06; N, 1.50, Found: C, 54.77; H, 4.73; N, 1.45.

Example 38

(R -N-12-Chloro-5-rrr6-O -(4-chloro-3-nitrobenzovD-4-O-r4.6O-(phenylmethylene)- α-D-glucopyranosyl1-β-D-glucopyranosyl]oxylmethyl]phenyl]acetamide

The title compound was prepared as a white solid (0.158 g, 52%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using 4-chloro-3-nitrobenzoyl chloride and a procedure similar to Example 2; ^!H ΝMR (DMSO-d₆) δ 2.13 (s, 3H), 3.41 (apparant t, J = 9.4 Hz, IH), 3.55-3.69 (m, 6H), 3.77 (apparant t, J = 9.0 Hz, IH), 3.87-3.97 (m, 3H), 4.29 (dd, J = 10.5, 4.8 Hz, IH), 4.41 (d, J = 7.7 Hz, IH), 4.47 (dd, J = 12.1, 5.3 Hz, IH), 4.60 (d, J = 12.7 Hz, 2H), 4.72 (dd, J = 12.0, 2.0 Hz, IH), 4.84 (d, J = 12.5 Hz, IH), 5.08 (d, J = 3.7 Hz, IH), 5.14 (bs, IH), 5.47 (s, IH), 6.99 (dd, J = 8.3, 2.0 Hz, IH), 7.29 (d, J = 8.3 Hz, IH), 7.32- 7.44 (m, 3H), 7.45-7.47 (m, 2H), 7.60 (s, IH), 7.64 (d, J = 8.6 Hz, IH), 8.16 (dd, J = 8.3, 2.0 Hz, IH), 8.34 (s, IH), 8.51 (d, J = 2.0 Hz, IH); IR (KBr) 3400, 2900, 1750, 1660, 1275 and 1075 cm^"1; mass spectrum [(+) FAB], m/z 795/797/799 (M + H)⁺, 817/819/821 (M + Νa)⁺; Anal. Calcd. for C₃₅H₃₆CLN₂O₁₅ 1.0 H₂O: C, 51.67; H, 4.71 ; N, 3.44, Found: C, 51.87; H, 4.84; N, 3.60.

Example 39

N-f 5-r(2.2'.3.-Tri-O -Acetyl-6-O -(4-chloro-3-nitrobenzovn-4'.6'-O-(benzylidene)- β-D-maItosyl -oxymethyl]-2-chloro-phenyl)-acetamide

The title compound was prepared as a white solid from (R)-N-[2-chloro-5-

[[[6-O -(4-chloro-3-nitrobenzoyl)-4-O-[4,6O-(phenylmethylene)-α-D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]phenyl]acetamide using a procedure similar to Example 25; ^]H ΝMR (CDC1₃) δ 2.04 (s, 3H), 2.05 (s, 3H), 2.06 (s, 3H),

2.22 (s, 3H), 3.11 (d. J = 3.7 Hz, IH), 3.62 (m, 4H), 3.81-3.99 (m, 2H), 4.29 (dd, J = 10.3, 4.8 Hz, IH), 4.48-4.61 (m, 3H), 4.98 (dd, J = 10.3, 3.7 Hz, IH), 5.35 (d, J = 4.0 Hz, IH), 5.44 - 5.52 (m, 2H), 6.99 (dd, J = 8.1, 2.0 Hz, IH), 7.31-7.42 (m, 6H), 7.58- 7.59 (m, 2H), 7.63 (d, J = 8.3 Hz, IH), 8.14 (dd, J = 8.3, 2.0 Hz, IH), 8.31 (bs, IH), 8.51 (d, J = 2.0 Hz, IH); IR (KBr) 3400, 2900, 1750, 1660, 1275 and 1075 cm^"1; mass spectrum [(+) FNB], m/z 921/923/925 (M + H)⁺, 943/945/947 (M + Νa)⁺; Anal. Calcd. for C₄₁H₄₂CLN₂O₁₈: C, 53.43; H, 4.59; N, 3.04, Found: C, 52.88; H, 5.11; N, 2.59.

Example 40 (R)-/V-r2-Chloro-5-ITr6- O -(4-cvanobenzovD-4-O-r4.6O-(phenylmethylene)-α-D- glucopyranosyll-β-D-glucopyranosylloxylmethyllphenyllacetamide

The title compound was prepared as a white solid from N-{5-[(4',6'-O- benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl }-acetamide using 4- cyanobenzoyl chloride and a procedure similar to Example 2, mp 143-145 °C; ^:H ΝMR (DMSO-J₆) δ 2.04 (s, 3H), 3.17-3.22 (m, 2H), 3.28-3.41 (m, 3H), 3.48-3.80 (m, 5H), 4.03 (dd, J = 9.4, 5.1 Hz, IH), 4.38-4.42 (m, 2H), 4.62 (d, J = 10.8 Hz, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.13, 2H), 5.14 (d, J = 4.80 Hz, 2H), 5.35 (apparant t, J = 5.3 Hz, 2H), 5.52 (s, IH), 5.59 (d, J = 2.9 Hz, IH), 5.83 (d, J = 6.0 Hz, IH), 7.19 (dd, J = 8.3, 2.0 Hz, IH), 7.34-7.39 (m, 3H), 7.39-7.42 (m, 2H), 7.63 (s, IH), 8.0 (d, J = 8.8 Hz, 2H). 8.13 (d, J = 8.8 Hz, 2H), 9.49 (s, IH); IR (KBr) 3400, 2900, 1725, 1660, 1275 and 1075 cm^"1; mass spectrum [(-) FAB], m/z 739/741 (M - H)^"; Anal. Calcd. for C₃₆H₃₇ClΝ₂O₁₃ ^" 0.5 H₂O: C, 57.64; H, 5.11; N, 3.73, Found: C, 57.47; H, 5.08; N, 3.57.

Example 41

(R)-N-r2-Chloro-5-rr 6-O -(4-nitrobenzoyl)-4-O-r4.6O-fDhenylmethylene)- -D- glucopyranosyll-β-D-glucopyranosylloxylmethyllphenylIacetamide

The title compound was prepared as a white solid from N-{5-[(4',6'-O- benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl }-acetamide using 4- nitrobenzoyl chloride and a procedure similar to Example 2; Η ΝMR (CDC1₃) δ 2.14

(s, 3H), 3.41 (apparant t, J = 9.2 Hz, IH), 3.54-3.69 (m, 5H), 3.84-3.99 (m, 5H), 4.30

(dd, J = 10.1. 5.1 Hz, IH), 4.41 (d, J = 7.7 Hz, IH), 4.50 (dd, J = 7.5, 4.6 Hz, 2H), 4.72 (dd, J = 12.1, 1.3 Hz, IH), 4.73 (ABq, J = 12.5 Hz, Δδ = 0.21, 2H), 4.85 (d, J = 3.4 Hz, 2H), 5.47 (s, IH), 6.97-7.0 (m, IH), 7.29 (d, J = 2.9 Hz, IH), 7.32-7.36 (m, 3H), 7.44-7.52 (m, 2H), 7.60 (bs, IH), 8.20 (d, J = 9.0 Hz, 2H), 8.29 (d, J = 9.0 Hz, 2H), 8.36 (bs, IH); IR (KBr) 3400, 2900, 1725, 1660, 1275 and 1075 cm ¹; mass spectrum [(+) FAB], m/z 761/763 (M + H)⁺, 783/785 (M + Na)⁺; Anal. Calcd. for C₃₅H₃₇ClN₂O₁₅ 2.0 H₂O: C, 52.74; H, 5.18; N, 3.51, Found: C, 52.92; H, 5.07; N, 3.45.

Example 42 (R -N-r2-Chloro-5-rrr6-O -(3-trifluoromethylbenzoyl -4-O-r4.6O-(phenyl- methylene)-α-D-glucopyranosyl]-β-D-glucopyranosylloxy]methyl]phenvnacetamide

The title compound was prepared as a white solid from N-{5-[(4',6'-O- benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl }-acetamide using 3-trifluoro- methylbenzoyl chloride and a procedure similar to Example 2, mp 194 °C; Η ΝMR (CDCl_j) δ 2.11 (s, 3H), 3.40 (apparant t, J = 9.4 Hz, IH), 3.53-3.68 (m, 5H), 3.77 (apparant t, J = 8.8 Hz, IH), 3.88-3.93 (m, 2H), 3.97 (apparant t, J = 9.4 Hz, IH), 4.30 (dd, J = 10.3, 5.1 Hz, IH), 4.40 (d, J = 7.7 Hz, IH), 4.71 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 4.73 (d, J = 11, Hz, IH), 5.08 (d, J = 3.7 Hz, 2H), 5.46 (s, IH), 6.95 (dd, J = 8.34, 1.8 Hz, IH), 7.26 (d, J = 8.3, Hz, IH), 7.30-7.34 (m, 3H), 7.43-7.47 (m, 2H), 7.60 (bt, 7 Hz, 2H), 7.81 (bd, J = 7.7 Hz, IH), 8.22 (bd, J = 8.0 Hz, IH), 8.32 (bd, J = 9.2 Hz, 2H); IR (KBr) 3400, 2900, 1725, 1660, 1250 and 1075 cm ¹; mass spectrum [(+) FAB], m/z 784/786 (M + H)\ 806/808 (M + Νa)⁺; Anal. Calcd. for C₃₆H₃₉ClNF₃O₁₃ 1.0 FLO: C, 53.91; H, 4.90; N, 1.75, Found: C, 54.19; H, 4.67; N, 1.75.

Example 43

N-(5-r(4'.6'-O-Benzylidene-6-O-(2-iodo)-benzoyl-β-D-maltosyl)-oxy-methyl1-2- chloro-phenvD-acetamide

The title compound was prepared as a white solid from N-{5-[(4',6'-O- benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using o- iodobenzoyl chloride and a procedure similar to Example 2, mp 140-143 °C; Η ΝMR (DMSO-J₆) δ 2.05 (s, 3H), 3.15-3.17 (m, IH), 3.28-3.65 (m, 6H), 3.75-3.79 (m, 3H), 4.14 (dd, J = 9.1 Hz, IH), 4.35 (dd, J = 12.1, 5.7 Hz, IH), 4.40 (d, J = 7.9, IH), 4.62 (d, J = 10.8, Hz, IH), 4.66 (ABq, J = 12.3 Hz, Δδ = 0.14, 2H), 5.15 (d, J =

4.0 Hz, IH), 5.36 (t, J = 5.3 Hz, 2H), 5.55 (s, IH), 5.60 (d, J = 2.64 Hz, IH), 5.87 (d, J = 6.2 Hz, IH), 7.18 (dd, J = 8.1, 2.00 Hz, IH), 7.26-7.30 (m, IH), 7.34-7.50 (m, 6H), 7.51-7.53 (m, IH), 7.63 (s, IH), 7.78 (dd, J = 7.9, 1.5 Hz, IH), 8.02 (dd, J = 7.9,

1.1 Hz, IH), 9.50 (s, IH); IR (KBr) 3400, 2930, 1750, 1550, 1245 and 1075 cm^'1; mass spectrum [(+) ESI], m/z 842/844 (M + H)⁺, 859/861 (M + NH₄)⁺; Anal. Calcd. for C₃₅H₃₇ClINO₁₃ 1.0 H₂O: C, 48.84; H, 4.53; N, 1.66, Found: C48.59.; H, 4.28; N, 1.58.

Example 44

N-(5-r(4'.6'-O-Benzylidene-6-O-(3-iodo)-benzoyl-β-D-maltosyl)-oxy-methvn-2- chloro-phenyl l-acetamide

The title compound was prepared as a white solid from N-{5-[(4',6'-O- benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using m-iodo- benzoyl chloride and a procedure similar to Example 2, mp 175-177 °C; Η ΝMR (DMSO-d₆) δ 2.05 (s, 3H), 3.15-3.20 (m, 2H), 3.32-3.42 (m, 2H), 3.50-3.61 (m, 4H), 3.70-3.77 (m, 2H), 4.00-4.09 (m, 2H), 4.34 (dd, J = 12.1, 5.7 Hz, IH), 4.40 (d, J = 7.9 Hz, IH), 4.62 (d, J = 10.5, Hz, IH), 4.66 (ABq, J = 12.3 Hz, Δδ = 0.14, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.35 (apparant t, J = 5.7 Hz, 2H), 5.53 (s, IH), 5.57 (d, J = 2.9 Hz, IH), 5.79 (d, J = 6.4 Hz, IH), 7.01 (dd, J = 8.3, 1.8 Hz, IH), 7.32-7.37 (m, 3H), 7.40-7.42 (m, 2H), 7.65 (s, IH), 7.99-8.03 (m, 2H), 8.26 (t, J = 1.8 Hz, IH), 9.50 (s, IH); IR (KBr) 3400, 2930, 1700, 1250 and 1075 cm^"1; mass spectrum [(-) FAB], m/z 840 (M - H)^"; Anal. Calcd. for C₃₅H₃₇ClΝO₁₃ 1.0 H₂O: C, 48.88; H, 4.57; N, 1.63, Found: C, 49.02; H, 4.49; N, 1.54.

Example 45

N-{5-[(4'.6'-O-Benzylidene-6-(4-iodo-benzoyl)-oxy-β-D-maltosyl -oxy-methyl1-2- chloro-phenyl) -acetamide The title compound was prepared as a white solid (0.410 g, 60%) from N-{5-

[(4' ,6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl }-acetamide using j9-iodobenzoyl chloride and a procedure similar to Example 2, mp >187 °C (decomp.); Η NMR DMSO-d₆) δ 2.05 (s, 3H), 3.15-3.22 (m, IH), 3.28-3.42 (m, 2H), 3.48-3.62 (m, 4H), 3.66-3.73 (m, IH), 3.75 (ddd, J = 1.5, 4.8, 9.7 Hz, IH), 4.01- 4.06 (m, IH), 4.35 (dd, J = 5.3, 12.3 Hz, IH), 4.39 (d, J = 7.7 Hz, IH), 4.57 (d, J = 10.3 Hz, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.12 (d, J = 4.0 Hz, IH), 5.35 (t, J = 5.3 Hz, 2H), 5.52 (s, IH), 5.58 (d, J = 2.9 Hz, IH), 5.81 (d, J = 6.2 Hz, IH), 7.19 (dd, J = 1.8, 8.1 Hz, IH), 7.33-7.38 (m, 3H), 7.38-7.43 (m, 3H), 7.64 (s, IH), 7.73 (dt, J = 2.0, 8.8 Hz, 2H), 7.91 (dt, J = 2.2, 8.8 Hz, 2H), 9.50 (s, IH); IR (KBr) 3420, 3270, 2920. 2880, 1725, 1660, 1590, 1530, 1450, 1425, 1385, 1375, 1280, 1140, 1110, 1070. 1050, 1030, 1005, and 750 cm^"1; mass spectrum [(+) FAB], m/z 864/866 (M + Na)⁺; Anal. Calcd. for C₃₅H₃₇ClINO₁₃: C, 49.93; H, 4.43; N, 1.66, Found: C, 49.65; H, 4.51; N, 1.77.

Example 46

(R)-N-r-2-Chloro-5-r[r6-6>^'-(Dhenylacetyl)-4-O-r4.6-O-(Dhenylmethylene)-α-D- glucopyranosyll-B-D-glucopyranosylloxylmethyllphenyllacetamide

The title compound was prepared as a white glass (0.249 g, 42%) from N-{5-

[(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using phenylacetyl chloride and a procedure similar to Example 2, mp >98 °C (decomp.);

Η ΝMR (DMSΟ-J₆) δ 2.08 (s, 3H), 3.08-3.13 (m, IH), 3.27-3.49 (m, 4H), 3.54 (dd, J = 5.3, 9.2 Hz, IH), 3.56-3.63 (m, 2H), 3.66 (dd, J = 4.4, 9.4 Hz, IH), 3.71 (s, 2H),

4.06 (dd, J = 4.4, 9.4 Hz, IH), 4.12 (dd, J = 5.7, 12.3 Hz, IH), 4.32 (d, J = 7.7 Hz, IH), 4.37 (d, J = 11.0 Hz, IH), 4.58 (ABq, J = 12.5 Hz, Δδ = 0.16, 2H), 5.02 (d, J =

3.7 Hz, IH), 5.32 (d, J = 5.3 Hz, IH), 5.35 (d, J = 5.3 Hz, IH), 5.55 (s, IH), 5.57 (d, J = 2.9 Hz, IH). 5.83 (6.2 Hz, IH), 7.18-7.31 (m, 6H), 7.34-7.36 (m, 3H), 7.41-7.46 (m, 3H), 7.65 (s. IH), 9.53 (s, IH); IR (KBr) 3390, 2910, 2880, 1740, 1670, 1590, 1535, 1460, 1420, 1375, 1310, 1250, 1140, 1070, and 1025 cm^"1; mass spectrum [(+) FAB], m/z 730/732 (M + H)⁺, 752/754 (M + Νa)⁺; 768/770 (M + K)⁺; Anal. Calcd. for C₃₆H₄₀C1NO₁₃ - 2.0 H,O: C, 56.43; H, 5.79; N, 1.83, Found: C, 56.62; H, 5.35; N, 1.79. Example 47

(R)-N-r2-Chloro-5-rrr2.3-di-O-acetyl-4-O-r2.3-di-O-acetyl-4.6-O-(Dhenyl- methylene)-α-D- glucop yranosyl] -6- O- (phenylacetyl)- β-D- glucopyranosyll - oxylmethyllphenyl] acetamide The title compound was prepared as a white foam (0.125 g, 73%) from (R)-N-

[-2-chloro-5- [ [ [6- O- (phenylacetyl)-4- O- [4,6- O-(phenylmethylene)-α-D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]phenyl]acetamide using a procedure similar to Example 25, mp >98 °C (decomp.); Η ΝMR (DMSΟ-J₆) δ 1.93 (s, 3H), 1.94 (s, 3H), 1.97 (s, 3H), 1.99 (s, 3H), 2.08 (s, 3H), 3.69-3.78 (m, 4H), 3.86-3.94 (m, 2H), 4.01 (ddd, J = 2.6, 4.4, 9.7 Hz, IH), 4.10 (d, J = 5.3 Hz, IH), 4.20 (dd, J = 5.1, 12.3 Hz, IH), 4.44-4.50 (m, 2H), 4.63-4.70 (m, 2H), 4.83 (d, J = 8.1 Hz, IH), 4.88 (dd, J = 4.2, 10.3 Hz, IH), 5.21-5.27 (m, 2H), 5.30 (t, J = 9.2 Hz, IH), 5.61 (s, IH), 7.05 (dd, J = 1.8, 8.1 Hz, IH), 7.19-7.30 (m, 5H), 7.35 (s, 5H), 7.45 (d, J = 8.3 Hz, IH), 7.62 (s, IH), 9.51 (s, IH); IR (KBr) 3400, 3030, 2940, 2840, 1755, 1690, 1600, 1530, 1445, 1420, 1375, 1240, 1140, 1060, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 898/900 (M + H)⁺, 920/922 (M + Νa)⁺; Anal. Calcd. for C₄₄H₄₈ClNO₁₇ • 1.75 H.O: C. 56.84; H, 5.58; N, 1.51, Found: C, 56.44; H, 5.11; N, 1.59.

Example 48 N-{5-r(4'.6'-O-Benzylidene-6-O-phenyl-ethyl-carboxyl-β-D-maltosyl)-oxy-methyl1- 2-chloro-phenyl I -acetamide

The title compound was prepared as a white solid (0.352 g, 63%) from N-{5- [(4',6^*-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using hydrocinnamoyl chloride and a procedure similar to Example 2, mp 192-193; Η ΝMR (DMSO-J₆) δ 2.06 (s, 3H), 2.66 (t, J = 7.7 Hz, 2H), 2.84 (t, J = 7.7 Hz, 2H), 3.08-3.16 (m. IH), 3.33-3.49 (m, 4H), 3.53-3.59 (m, 2H), 3.61-3.72 (m, 2H), 4.05- 4.12 (m, 2H). 4.32-4.37 (m, 2H), 4.62 (ABq, J = 12.3 Hz, Δδ = 0.16, 2H), 5.09 (d, J = 4.0 Hz, IH), 5.35 (d, J = 5.1 Hz, IH), 5.33 (d, J = 5.3 Hz, IH), 5.54-5.58 (m, IH), 5.56 (s, IH), 5.82 (d, J = 6.2 Hz, IH), 7.12-7.18 (m, IH), 7.18-7.26 (m, 5H), 7.34- 7.40 (m, 3H).7.42-7.46 (m, 3H), 7.65 (s, IH), 9.51 (s, IH); IR (KBr) 3560, 3390. 3260.3080, 2900, 2880, 1745, 1660, 1590, 1540, 1450, 1425, 1370, 1320, 1280, 1200. 1180.1140, 1070, 1050, 1025, 970, 755, and 695 cm^"1; mass spectrum [(+) FAB], m/z 744 (M + H)⁺, 766 (M + Na)⁺; Anal. Calcd. for C₃₇H₄₂ClNO₁₃: C, 59.72; H, 5.69; N, 1.88, Found: C, 59.75; H, 5.75; N, 2.03.

Example 49 N-(5-r(4'.6'-O-Benzylidene-6-O-phenyl-propyl-carboxyl-β-D-maltosyl)-oxy- methyl1-2-chloro-phenyl}-acetamide

The title compound was prepared as a white solid (0.210 g, 68%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using 4-phenylbutyryl chloride (prepared from 4-phenylbutyric acid and oxalyl chloride) and a procedure similar to Example 2, mp 184-185 °C; Η ΝMR (DMSO-J₆) δ 1.77- 1.86 (m, 2H), 2.07 (s, 3H), 2.34 (t, J = 7.2 Hz, 2H), 2.58 (t, J = 7.5 Hz, 2H), 3.08- 3.16 (m, IH), 3.29-3.51 (m, 4H), 3.53-3.73 (m, 4H), 4.07-4.14 (m, 2H), 4.33-4.38 (m, 2H), 4.62 (ABq, J = 12.3 Hz, Δδ = 0.16, 2H), 5.09 (d, J = 4.0 Hz, IH), 5.28-5.37 (bs, 2H), 5.56 (s, 2H), 5.82 (d, J = 5.3 Hz, IH), 7.13-7.19 (m, 4H), 7.21-7.27 (m, 2H), 7.33-7.37 (m, 3H), 7.40-7.46 (m, 3H), 7.63 (s, IH), 9.51 (s, IH); IR (KBr) 3560, 3390, 3260, 3080, 2930, 2900, 2880, 1745, 1665, 1590, 1540, 1450, 1420, 1370, 1320, 1275, 1175, 1140, 1070, 1050, 1025, and 690 cm^"1; mass spectrum [(+) FAB], m/z 780/782 (M + Νa)⁺; Anal. Calcd. for C₃₈H₄₄ClNO₁₃: C, 60.20; H, 5.85; N, 1.85, Found: C, 60.13; H, 5.73; N, 1.99.

Example 50

Diphenyl- acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7.8-dihvdroχy-2-

Dhenyl-hexahvdro-pyrano[3.2-diri.31dioxin-6-yloxy -4.5-dihvdroxy-tetrahvdro- pyran-2-ylmethyl ester The title compound was prepared as a white foam (0.510 g, 77%) from N-{5-

[(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using diphenylacetyl chloride and a procedure similar to Example 2, mp >106 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.08 (s, 3H), 3.03-3.09 (m, IH), 3.26-3.38 (m, 3H), 3.41-3.47 (m, IH), 3.51-3.62 (m, 3H), 3.66-3.73 (m, IH), 4.02-4.07 (m, IH), 4.15 (q, J = 6.2 Hz, IH), 4.27 (d, J = 7.7 Hz, IH), 4.46 (ABq, J = 12.5 Hz, Δδ = 0.15, 2H), 4.50 (d, J = 10.8 Hz, IH), 4.90 (d, J = 4.0 Hz, IH), 5.27 (s, IH), 5.31 (d, J = 5.3 Hz, IH), 5.35 (d, J = 5.3 Hz, IH), 5.54-5.56 (m, 2H), 5.81 (d, J = 6.4 Hz, IH), 7.14 (dd, J = 1.8, 8.3 Hz, IH), 7.19-7.25 (m, 2H), 7.25-7.34 (m, 8H), 7.34-7.38 (m, 3H), 7.40-7.45 (m, 3H), 7.61 (s, IH), 9.52 (s, IH); IR (KBr) 3400, 3050, 2900, 2860, 1730, 1680, 1600, 1530, 1500, 1450, 1420, 1375, 1310, 1275, 1240, 1150, 1070, 1025, 750, and 690 cm ¹: mass spectrum [(+) FAB], m/z 806/808 (M + H)⁺, 828/830 (M + Na)⁺, 844/846 (M + K)⁺; Anal. Calcd. for C₄₂H₄₄ClNO₁₃ • 1.0 H₂O: C, 61.20; H, 5.63; N, 1.70, Found: C, 61.17; H, 5.48; N, 1.59.

Example 51

Diphenyl-acetic acid 4.5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7.8- diacetoxy-2-phenyl-hexahvdro-pyranor3.2-diπ,31dioxin-6-yloxy -tetrahvdro-pyran- 2-ylmethyl ester

The title compound was prepared as a white foam (0.289 g, 76%) from diphenyl-acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3- (7 , 8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d] [ 1 ,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro- pyran-2-ylmethyl ester using a procedure similar to Example 25, mp >99 °C (decomp.); Η NMR (DMSO-J₆) δ 1.92 (s, 3H), 1.94 (s, 3H), 1.96 (s, 3H), 1.99 (s, 3H), 2.08 (s, 3H), 3.66 (t, J =9.9 Hz, IH), 3.72-3.78 (m, IH), 3.78 (t, J = 9.0 Hz, IH), 3.87 (t, J = 9.7 Hz. IH), 3.98-4.05 (m, 2H), 4.18-4.24 (m, IH), 4.44 (ABq, J = 12.7 Hz, Δδ = 0.16, 2H), 4.61-4.67 (m, 2H), 4.80 (d, J = 7.9 Hz, IH), 4.88 (dd, J = 4.2, 10.3 Hz, IH), 5.16 (d, J = 4.0 Hz, IH). 5.22 (t, J = 9.9 Hz, IH), 5.29 (t, J = 9.2 Hz, IH), 5.31 (s, IH), 5.60 (s, IH), 6.99 (dd, J = 1.5, 8.1 Hz, IH), 7.20-7.25 (m, 2H), 7.27-7.35 (m, 8H), 7.35 (s, 5H), 7.43 (d, J = 8.1 Hz, IH), 7.59 (s, IH), 9.51 (s, IH); IR (KBr) 3410, 3070, 3025, 2930, 2860, 1755, 1690, 1600, 1525, 1450, 1410, 1375, 1240, 1140, 1055. and 1030 cm^'1; mass spectrum [(+) FAB], m/z 974 (M + H)\ 996 (M + Na)⁺; Anal. Calcd. for C₅₀H₅₂C1NO_I7 ^• 1.25 H₂O: C, 60.24; H, 5.51; N, 1.40, Found: C, 59.97: H. 5.10: N, 1.37. Example 52

(3.4-Dimethoxy-phenyl)-acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7.8- dihvdroxy-2-phenyl-hexahvdro-pyranor3.2-d]ri.31dioxin-6-yloxy)-4.5-dihvdroxy- tetrahvdro-pyran-2-ylmethyl ester The title compound was prepared as a white foam (0.316 g, 49%) from N-{5-

[(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using 3,4-dimethoxyphenylacetyl chloride and a procedure similar to Example 2, mp >116 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.07 (s, 3H), 3.07-3.14 (m, IH), 3.28-3.50 (m, 6H), 3.52-3.65 (m, 4H), 3.67 (s, 3H), 3.68 (s, 3H), 4.07 (dd, J = 4.4, 9.7 Hz, IH), 4.11 (dd, J = 5.5. 12.3 Hz, IH), 4.31-4.38 (m, 2H), 4.58 (ABq, J = 12.3 Hz, Δδ = 0.16, 2H), 4.99 (d, J = 3.7 Hz, IH), 5.34 (dd, J = 5.3, 9.2 Hz, 2H), 5.55 (s, IH), 5.57 (d, J = 2.9 Hz, IH). 5.82 (d, J = 6.2 Hz, IH), 6.76 (dd, J = 2.0, 8.3 Hz, IH), 6.82 (d, J = 8.3 Hz, IH), 6.85 (d, J = 2.0 Hz, IH), 7.18 (dd, J = 2.0, 8.3 Hz, IH), 7.34-7.37 (m, 3H), 7.41-7.46 (m, 3H), 7.64 (s, IH), 9.53 (s, IH); IR (KBr) 3410, 2920, 1735, 1675, 1600, 1520, 1450, 1420, 1375, 1265, 1230, 1140, 1070, and 1025 cm^"1; mass spectrum [(+) FAB], m/z 790/792 (M + H)⁺; Anal. Calcd. for C₃₈H₄₄ClΝO₁₅ • 0.5 ITO: C, 57.11; H, 5.68: N, 1.75, Found: C, 56.95; H, 5.55; N, 1.71.

Example 53 (3.4-Dimethoxy-phenvI)-acetic acid 4.5-diacetoxy-6-(3-acetylamino-4-chloro- benzyloxy)-3-(7.8-diacetoxy-2-phenyl-hexahvdro-pyranor3.2-diri,3]dioxin-6-yloxy)- tetrahvdro-pyran-2-ylmethyl ester

The title compound was prepared as a white foam (0.105 g, 89%) from (3,4- dimethoxy-phenyl)-acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- dihydroxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy- tetrahydro-pyran-2-ylmethyl ester using a procedure similar to Example 25, mp >98 °C (decomp.): Η NMR (DMSO-J₆) δ 1.92 (s, 3H), 1.94 (s, 3H), 1.97 (s, 3H), 1.99 (s, 3H), 2.07 (s, 3H). 3.62-3.77 (m, 4H), 3.66 (s, 3H), 3.67 (s, 3H), 3.89 (t, J = 9.2 Hz, 2H), 3.99-4.03 (m. IH), 4.10 (dd, J = 10.5, 16.0 Hz, IH), 4.19 (dd, J = 4.4, 11.9 Hz, IH), 4.44-4.50 (m. 2H), 4.64-4.70 (m, 2H), 4.84 (d, J = 8.1 Hz, IH), 4.87 (dd, J = 4.0, 10.1 Hz. IH). 5.21 (d, J = 3.7 Hz, IH), 5.25 (d, J = 9.9 Hz, IH), 5.30 (t, J = 9.2 Hz, IH), 5.62 (s, IH), 6.77 (dd, J = 1.8, 8.1 Hz, IH), 6.81 (d, J = 8.3 Hz, IH), 6.86 (d, J = 1.8 Hz, IH), 7.04 (dd, J = 1.8, 8.3 Hz, IH), 7.35 (s, 5H), 7.44 (d, J = 8.1 Hz, IH), 7.61 (s, IH), 9.51 (s, IH); IR (KBr) 3370, 2930, 2860, 1755, 1690, 1600, 1520, 1450, 1420, 1370, 1240, 1140, 1055, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 958/960 (M + H)⁺, 980/982 (M + Na)⁺; Anal. Calcd. for C₄₆H₅₂ClNO₁₉ • 1.75 H₂O: C, 55.81; H, 5.65; N, 1.41, Found: C, 55.60; H, 5.14; N, 1.38.

Example 54

Nicotinic acid 6-(3-acetylamino-4-chloro-benzyloxy -3-(7.8-dihvdroxy-2-phenvI- hexahvdro-pyranol3.2-d]ri,31dioxin-6-yloxy)-4.5-dihvdroxy-tetrahvdro-pyran-2- ylmethyl ester

The title compound was prepared as a white solid (0.278 g, 47%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using nicotinoyl chloride hydrochloride and a procedure similar to Example 2, mp >133 °C (decomp.); Η ΝMR DMSO-d₆) 8 2.04 (s, 3H), 3.16-3.23 (m, IH), 3.36 (d, J = 9.4 Hz, IH), 3.36-3.42 (m, IH), 3.48-3.61 (m, 3H), 3.63 (t, J = 9.4 Hz, IH), 3.68-3.75 (m, IH), 3.76-3.80 (m, IH), 4.04 (dd, J = 4.6, 9.9 Hz, IH), 4.36-4.41 (m, 2H), 4.64 (d, J = 10.5 Hz, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.16 (d, J = 4.0 Hz, IH), 5.35 (dd, J = 4.0, 5.1 Hz, 2H), 5.52 (s, IH), 5.58 (d, J = 2.9 Hz, IH), 5.82 (d, J = 6.2 Hz, IH), 7.19 (dd, J = 1.8, 8.3 Hz, IH), 7.34-7.38 (m, 3H), 7.39-7.43 (m, 3H), 7.57 (ddd, J = 0.7, 4.8, 7.9 Hz, IH), 7.64 (s, IH), 8.33 (dt, J = 2.0, 7.9 Hz, IH), 8.82 (dd, J = 1.8, 4.8 Hz, IH), 9.12 (d, J = 2.2 Hz, IH), 9.49 (s, IH); IR (KBr) 3410, 2910, 2870, 1730, 1625, 1600, 1530, 1455, 1425, 1380, 1290, 1130, 1110, 1070, 1025, 740, and 690 cm^'1; mass spectrum [(+) FAB], m/z 717/719 (M + H)⁺; Anal. Calcd. for C₃₄H₃₇ClΝ₂O₁₃ • 1.0 H₂O: C, 55.55; H, 5.35; N, 3.81, Found: C, 55.55; H, 5.30; N, 3.78.

Example 55

Nicotinic acid 4.5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3-(7.8-diacetoxy- 2-phenyl-hexahvdro-pyranor3.2-diri.31dioxin-6-yloxy)-tetrahydro-pyran-2-ylmethyl ester

The title compound was prepared as a white foam (0.157 g, 73%) from nicotinic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy-2-phenyl- hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro-pyran-2- ylmethyl ester using a procedure similar to Example 25, mp >112 °C (decomp.); Η NMR (DMSO-d₆) δ 1.94 (s, 3H), 1.95 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 2.05 (s, 3H), 3.64 (t, J = 9.4 Hz, IH), 3.69-3.76 (m, IH), 3.79 (dd, J = 4.2, 9.2 Hz, IH), 3.87 (t, J = 9.4 Hz, IH), 4.13-4.19 (m, IH), 4.26 (t, J = 9.4 Hz, IH), 4.48 (dd, J = 4.0, 12.3 Hz, IH), 4.64 (ABq, J = 12.7 Hz, Δδ = 0.14, 2H), 4.71-4.76 (m, IH), 4.82 (dd, J = 8.1, 9.2 Hz, IH), 4.87-4.92 (m, 2H), 5.26 (t, J = 10.1 Hz, IH), 5.32-5.38 (m, 2H), 5.55 (s, IH), 7.04 (dd, J = 1.8, 8.1 Hz, IH), 7.29-7.36 (m, 5H), 7.42 (d, J = 8.1 Hz, IH), 7.58 (dd, J = 4.8, 8.1 Hz, IH), 7.61 (s, IH), 8.39 (dt, J = 2.0, 7.9 Hz, IH), 8.84 (dd, J = 1.5, 4.6 Hz, IH), 9.17-9.19 (m, IH), 9.49 (s, IH); IR (KBr) 3410, 2940. 2860, 1755, 1690, 1600, 1530, 1450, 1420, 1380, 1290, 1240, 1140, 1055, 1030, and 995 cm ¹; mass spectrum [(+) FAB], m/z 885 (M + H)⁺, 907 (M + Na)⁺; Anal. Calcd. for C₄₂H₄₅ClN₂O₁₇ • 1.0 H₂O: C, 55.85; H, 5.24; N, 3.10, Found: C, 55.61: H, 4.89; N, 2.99.

Example 56

(R)-N-r5-rrr6-O-(4-Benzoylbenzoyl -4-O-r4.6-O-(Dhenylmethylene)- -D- glucopyranosyl]-β-D-glucopyranosvnoxylmethyll-2-chlorophenyl]acetamide

The title compound was prepared as a white powder (0.347 g, 52%) from N- {5-[(4',6'-O-benzylidene-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide using -benzoylbenzoyl chloride (prepared from / benzoylbenzoic acid and oxalyl chloride) and a procedure similar to Example 2, mp >117 °C (decomp.); 'H ΝMR DUSO-d₆) δ 2.03 (s, 3H), 3.17-3.23 (m, IH), 3.27-3.43 (m, 2H), 3.49-3.66 (m, 4H), 3.70-3.82 (m, 2H), 4.08 (4.8, 10.1 Hz, IH), 4.39-4.44 (m, 2H), 4.64 (d. J = 10.5 Hz, IH), 4.66 (ABq, J = 12.3 Hz, Δδ = 0.14, 2H), 5.16 (d, J = 4.0 Hz, IH), 5.36 (t, J = 5.3 Hz, 2H), 5.53 (s, IH), 5.60 (d, J = 2.9 Hz, IH), 5.83 (d, J = 6.2 Hz, IH), 7.20 (dd, J = 1.8. 8.1 Hz, IH), 7.33-7.37 (m, 3H), 7.39-7.43 (m, 3H), 7.54-7.59 (m, 2H), 7.65 (s, IH), 7.67-7.73 (m, IH), 7.73-7.77 (m, 2H), 7.82-7.86 (m, 2H), 8.13-8.17 (m, 2H), 9.49 (s, IH); IR (KBr) 3410, 3080, 2910, 2850, 1725, 1660, 1600, 1530. 1450, 1420, 1400, 1365, 1270, 1140, 1070, and 1025 cm^'1; mass spectrum [(-) ESI], m z 818.1 (M - H)^'; Anal. Calcd. for C₄₂H₄₂ClΝO₁₄ • 0.5 H₂O: C, 60.83; H, 5.23; N, 1.69, Found: C, 60.71; H, 5.28; N, 1.61. Example 57

N-(5-r(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl1-2-methyl-phenyll-acetamide step 1 5-[(Hepta-O-acetyl-β-D-maltosyl)-oxy-methyl]-2-methyl-l-nitrobenzene

The title compound was prepared as a colorless solid (8.02 g, 53%) from 4- methyl-3-nitrobenzyl alcohol and acetobromomaltose using a procedure similar to step 1 of Example 1, mp 68-74 °C; Η ΝMR (OMSO-d₆) δ 1.93 (s, 3 H), 1.94 (s, 3 H), 1.95 (s, 3 H), 1.96 (s, 3 H), 1.97 (s, 3 H), 2.012 (s, 3 H), 2.07 (s, 3 H), 3.93 - 4.01 (m, 4 H), 4.13 - 4.21 (m, 2 H), 4.37 (d, 2 H), 4.64 - 4.90 (m, 5 H), 4.97 (t, 1 H), 5.20 (dd, 1 H), 5.27 - 5.33 (m, 2 H), 7.48 (d, 1 H), 7.52 (d, IH), 7.88 (s, 1 H). IR (KBr) 2950, 1750, 1230 and 1050 cm^"1, mass spectrum [(+FAB)], m/z 808 (M + H)⁺. Anal. Calcd. for C₃₄H₄₃ΝO₂₀: C, 51.98; H,5.52; N, 1.78. Found: C, 51.59; H, 5.45; N, 1.86.

step 2

5- (Hepta-O- acetyl - β-D-mal tosyloxymethy 1 )-2-methylphenyl amine

The title compound was prepared as a white foam (5.39 g, 79%) from 5- (hepta-O-acetyl-β-D-maltosyloxymethyl)-2-methyl-l -nitrobenzene using a procedure similar to step 2 of Example 1; Η NMR (OMSO-d₆) δ 1.93 (s, 3 H), 1.94 (s, 3 H), 1.95 (s, 3 H), 1.97 (s, 3 H), 1.98 (s, 3 H), 2.03 (s. 6 H), 2.10 (s, 3 H), 3.93 - 4.03 (m, 4 H), 4.14 - 4.23 (m, 2 H), 4.32 - 4.41 (m, 2 H), 4.58 (d, 1 H), 4.68 (t, 1 H), 4.76 - 4.88 (m, 4 H), 4.98 (t, 1 H), 5.22 (t, 1 H), 5.28 -5.31 (m, 2 H), 6.37 (d, 2 H), 6.49 (s, 1 H), 6.87 (d, 1 H).

step 3

N-[5-(Hepta-0-acetyl-β-D-maltosyloxymethyl)-2-methylphenyl]acetamide

The title compound was prepared as a white foam (6.60 g, 91%) from 5-

(hepta-O-acetyl-β-D-maltosyloxymethyl)-2-methylphenylamine using a procedure similar to step 3 of Example 1; Η ΝMR (DMSΟ-J₆) δ 1.93 (s, 3 H), 1.94 (s, 3 H), 1.95 (s, 3 H), 1.979 (s. 3 H), 1.984 (s, 3 H), 2.03 (s, 3 H), 2.10 (s, 3 H), 2.18 (s, 3 H),

3.94 - 4.02 (m. 4 H). 4.14 - 4.24 (m, 2 H), 4.40 (d, 1 H), 4.48 (d, 1 H), 4.67 - 4.74 (m 2 H), 4.81 - 4.89 (m 2 H), 4.98 (t, 1 H), 5.19 - 5.32 (m, 3 H), 6.98 (d, 1 H), 7.17 (d, 1 H), 7.33 (s, 1 H), 9.27 (s, 1 H).

step 4 N-[5-(β-D-MaltosyIoxy-methyI)-2-methyl-phenyl]-acetamide

A solution containing N-[5-(hepta-O-acetyl-β-D-maltosyloxymethyl)-2- methylphenyl] acetamide (6.60 g, 8.27 mmol) and 25 weight% ΝaOMe in MeOH (0.893 g, 4.14 mmol) in MeOH (198 mL) was refluxed for 2.5h. The reaction was cooled to room temperature and concentrated to give 4.09 g (98%) of the product as a white foam. This material was used without any additional purification.

An analytical sample was obtained by reverse phase HPLC (C18, 15% CH₃CΝ/H₂O) to give a white solid, mp 115 °C; Η NMR (DMSO-d₆) δ 2.03 (s, 3 H), 2.16 (s, 3 H), 3.04 - 3.09 (m, 2 H), 3.21 - 3.56 (m, 7 H), 3.57 - 3.62 (m, 2 H), 3.70 - 3.73 (m, 1 H), 4.26 (d, 1 H), 4.48 - 4.54 (m, 3 H), 4.76 (d, 1 H), 4.86 - 4.89 (m, 2 H), 5.01 (d, 1 H), 5.17 (d, 1 H), 5.42 (d, 1 H), 5.49 (d, 1 H), 7.10 (d, IH), 7.15 (d, 1 H), 7.35 (s, 1 H), 9.28 (s, 1 H). IR (KBr) 3375, 2900, 1670 and 1025 cm^"1, mass spectrum [(+) FAB], m/z 504 (M + H)⁺, 526 (M + Na)⁺. Anal. Calcd. for C₂₂H₃₃NO₁₂ ^' 0.5 H₂O: C, 51.56; H, 6.67; N, 2.73. Found: C, 51.78; H, 6.81; N, 2.75.

step 5

N-{5-[(4',6'-0-Benzylidene-β-D-maltosyI)-oxy-methyl]-2-methyl-phenyl}- acetamide

A solution containing N-{5-[(β-D-maltosyl)-oxy-methyl]-2-methyl-phenyl}- acetamide (1.88 g, 3.83 mmol), benzaldehyde dimethyl acetal (0.807 mL, 5.36 mmol) and / toluenesulfonic acid monohydrate (72.7 mg, 0.383 mmol) was heated at 60 °C. After 4h, additional benzaldehyde dimethyl acetal (0.403 mL, 2.68 mmol) and p- toluenesulfonic acid monohydrate (36.4 mg, 0.192 mmol) was added and the reaction was heated at 60 °C for 16 h. To the reaction was added K₂CO₃ and heating was continued for 0.5h. The hot solution was filtered and the filtrate concentrated. Purification by reverse phase HPLC (C18, 15% CH₃CΝ:H₂O) gave 1.26 g (56%) of the title compound as a white solid, mp 190-197 °C; Η NMR (DMSO-J₆) δ 2.04 (s, 3H), 2.16 (s, 3H), 3.08 (t, IH), 3.35-3.40 (m, 3H), 3.45 (t, IH), 3.53-3.59 (m, 2H), 3.64-3.75 (m, 3H), 4.11 (dd, J = 5.1, 2.4 Hz, IH), 4.28 (d, IH), 4.50 (d,lH), 4.67 (t, IH), 4.77 (d, IH), 5.13 (d, IH), 5.21 (br. s, IH), 5.29 (br. s, IH), 5.49 (br. s, IH), 5.57 (s, IH), 5.61 (br. s, IH), 7.10 (d, IH), 7.16 (d, IH), 7.34-7.38 (m, 4H), 7.42- 7.45 (s, 2H), 9.28 (s, IH); IR (KBr) 3400, 2900, 1650 andl075 cm^"1; mass spectrum [(+) ESI], m/z 609 (M + NH₄)⁺, 614 (M + Na)⁺; Anal. Calcd. for C₂₉H₃₇NO₁₂ 0.5 ILO: C, 57.99; H, 6.30; N, 2.37, Found: C, 57.80; H, 6.39; N, 2.50. Found: C, 57.85; H, 6.33; N, 2.27.

Example 58 N-Acetyl-{5-r(2.2'.3.3'.6-Denta-O-acetyl-4'.6'-O-benzylidene-β-D-maltosyl^')-oxy- methyl1-2-methyl-phenyl}acetamide

At 0 °C, to a stirred solution containing N-{5-[(4',6'-O-benzylidene-β-D- maltosyl)-oxy-methyl]-2-methyl-phenyl}-acetamide (0.406 g, 0.686 mmol), pyridine (1.66 mL, 20.6 mmol) and 4-dimethylaminopyridine (0.768 g, 6.86 mmol) was added dropwise acetic anhydride (1.28 mL, 13.7 mmol). After 6h, with reaction eventually warmed to room temperature, the solution was diluted with diethyl ether (100 mL), washed successively with H₂O (2x), sat. aq. ΝaHCO₃ (2x), sat. aq. CuSO₄ (2x), brine (2x), dried (Na₂SO₄) and concentrated. Purification by flash chromatography (3, 4 and 5% MeOH:CHCl₃ gradient) gave 0.194 g, (34%), of a white solid after cryatallization from CH₂Cl₂:petroleum ether, mp 97 °C; Η NMR (DMSO-J₆) δ 1.90 (s, 3H), 1.92 (s, 3H), 1.98 (s, 3H), 1.99 (s, 3H), 2.06 (s, 3H), 2.08 (s, 3H), 2.13 (s, 3H), 2.17 (s, 3H), 3.71-3.80 (m, 2H), 3.95-4.02 (m, 2H), 4.12-4.18 (m, 2H), 4.39 (dd, J = 9.9, 2.2 Hz, IH), 4.56 (d, IH), 4.67-4.75 (m, 2H), 4.86-4.90 (m, 2H), 5.22-5,33 (m, 3H), 5.61 (s, IH), 7.11 (s, IH), 7.24 (d, IH), 7.34 (d, IH), 7.36 (s, 5H); IR (KBr) 3450, 2900, 1750 and 1240 cm^'1; mass spectrum [(+) FAB], m/z 844 (M + H)⁺, 866 (M + Na)⁺; Anal. Calcd. for C_4IH₄₉NO₁₈: C, 58.36; H, 5.85; N, 1.66, Found: C, 57.99: H, 5.76; N, 1.67. Example 59

N-(5-(r4'.6'-O-Benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosyl1-oxy-methyl}-2- methyl-phenvD-acetamide

At 0 °C, to a stirred solution of N-{5-[(4',6'-O-benzylidene-β-D-maltosyl)- oxy-methyl]-2-methyl-phenyl}-acetamide (0.711 g, 1.20 mmol) in pyridine (2.4 mL) was added a solution of ^-toluenesulfonyl chloride (0.275 g, 1.44 mmol) in CFL,C1₂ (1.5 mL). After 2 h, additional / toluenesulfonyl chloride (0.275 g, 1.44 mmol) in CH₂C1₂ (1.5 mL) was added and the solution was stirred at 0 °C for 2h. The reaction was quenched with ice cold H₂O (50 mL) and extracted with EtOAc. The combined organic extracts were washed successively with sat. aq. ΝaHCO₃ (2x), sat. aq. CuSO₄ (2x), brine (2x), dried (Na₂SO₄) and concentrated. Purification by reverse phase HPLC (C18, 50% CH₃CN:H.O) gave 0.421 g, (47%) of a colorless solid, mp 115-121 °C; 'H NMR (DMSO-J₆) δ 2.05 (s, 3H), 2.17 (s, 3H), 2.33 (s, 3H), 3.05 (t, IH), 3.24- 3.44 (m, 4H), 3.52 (t, IH), 3.58-3.62 (m, 3H), 3.95 (d, IH), 4.13 (dd, IH), 4.28 (d, IH), 4.33 (d, IH), 4.41 (d, IH), 4.59 (d, IH), 5.05 (d, IH), 5.57 (s, IH), 7.06 (d, IH), 7.16 (d, IH), 7.33-7.47 (m, 8H), 7.78 (d, 2H), 9.29 (s. IH); IR (KBr) 3375, 2900, 1650, 1350, 1175 and 1075 cm^"1; mass spectrum [(+) FAB], m/z 746 (M + H)⁺, 768 (M + Na)⁺; Anal. Calcd. for C₃₆H₄₃NO₁₄S H₂O: C, 56.61; H, 5.94; N, 1.83, Found: C, 56.61; H, 5.77; N, 1.80.

Example 60

N-(5-r(4^,.6'-O-Benzylidene-6-O-phenvI-β-D-maltosyl)-oxy-methyll-2-chloro- phenyl } -acetamide

At ambient temperature, to a stirred solution of phenol (0.0784 g, 0.833 mmol) in DMF (10 mL) was added potassium-t-butoxide (0.0982 g, 0.833 mmol). After 0.5 h, to the reaction was added a solution of N-(5-{[2,3,2',3'-tetra-O-acetyl- 4'.6'-O-benzylidene-6-Ο-(4-toluenesulfonyl)-β-D-maltosyl]-oxy-methyl}-2-chloro- phenyl)-acetamide (0.389 g, 0.417 mmol) in DMF (4 mL) and the reaction was heated at 65 °C for 3 h. The reaction was cooled to ambient temperature, quenched with H₂Ο (40 mL), extracted with EtONc, dried (Νa₂SO₄) and concentrated. The crude product was dissolved in MeOH (10 mL) and treated with 25 weight% NaOMe in MeOH (45 mg) at 65 °C for 3 h. The reaction was cooled to ambient temperature and concentrated. Purification by flash chromatography (5 and 10% MeOH:CHCl₃ gradient) gave 0.149 g (39%) of title compound as a solid; Η NMR DMSO-d₆) δ 2.05 (s, 3H), 3.13-3.19 (m, IH), 3.27-3.40 (m, 2H), 3.44-3.66 (m, 5H), 3.70-3.73 (m, 2H), 4.14 (dd, J = 10.8, 4.4 Hz, IH), 4.23 (d, J = 10.9 Hz, IH), 4.39 (d, J = 7.7 Hz, IH), 4.64 (ABq. J = 12.3 Hz, Δδ = 0.08, 2H), 5.16 (d, J = 3.7 Hz, IH), 5.28 (d, J = 5.1 Hz, IH), 5.33 (d. J = 5.3 Hz, IH), 5.47 (s, IH), 5.56 (d, J = 3.3 Hz, IH), 5.67 (d, J = 6.4 Hz, IH), 6.90-6.97 (m, 3H), 7.20 (dd, J = 8.2, 1.9 Hz, IH), 7.25-7.29 (m, 2H), 7.32-7.36 (m, 5H), 7.42 (d, J = 8.3 Hz, IH), 7.65 (s, IH), 9.50 (s, IH); IR (KBr) 3400, 2900, 1650 and 1070 cm^"1; mass spectrum [(+) FAB], m/z 710 (M + Na)⁺; Anal. Calcd. for C₃₄H₃₈NClO₁₂: C, 59.34; H, 5.57; N, 2.03, Found: C, 58.96; H, 5.78; N, 2.16.

Example 61

(R)-N-r2-Chloro-5-rr[4-O-r4'.6'-O-(phenylmethylene)- -D-glucoDyranosyll-β-D- glucopyranosylloxylmethyl] phenyll-3-pyridinecarboxamide step 1

N-[2-Chloro-5-[[[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-α-D- glucopyranoysl)-β-D-glucopyranosyl]oxy]methyl]phenyl]-3-pyridinecarboxamide To a stirred solution of 2-chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)- phenylamine (0.200 g. 0.258 mmol) and triethylamine (0.119 mL, 0.851 mmol) in THF (3 mL) at 0 °C was added nicotinoyl chloride hydrochloride (0.0551 mg, 0.310 mmol). After 0.5 h at this temperature, it was warmed to rt and stirred an additional 18 h. At this point, the solid was filtered off and washed with additional THF (10 mL). The filtrate was then concentrated and taken up in EtOAc (100 mL). This organic solution was washed with FLO (10 mL) and brine (10 mL) and then dried (Νa₂SO₄). After concentration, the residue was purified by preparatory plate chromatography (10:90 MeOH:CHCl₃) to afford the product (0.183 g, 80%) as a white foam, mp 83-86 °C; Η NMR (CDCL_,) δ 1.99 (s, 3H), 2.00 (s, 3H), 2.02 (s, 3H), 2.03 (s, 3H). 2.04 (s. 3H), 2.10 (s, 3H), 2.16 (s, 3H), 3.67-3.72 (m, IH), 3.93-3.98 (m, IH), 4.04 (dd. J = 2.2, 11.9 Hz, 2H), 4.25 (dt, J = 3.7, 12.5 Hz, 2H), 4.53 (dd, J = 2.9, 12.3 Hz. IH), 4.60 (d, J = 7.7 Hz, IH). 4.64 (d, J = 12.5 Hz, IH), 4.83-4.93 (m, 3H), 5.05 (t, J = 10.1 Hz, IH), 5.23 (t, J = 9.4 Hz, IH), 5.34 (dd, J = 9.7, 10.5 Hz, 1H), 5.41 (d, J = 4.2 Hz, IH), 7.07 (dd, J = 2.0 Hz, IH), 7.41 (d, J = 8.1 Hz, IH), 7.48 (ddd, J = 0.9, 4.8, 7.9 Hz, IH), 8.23 (ddd, J = 1.5, 2.2, 7.9 Hz, IH), 8.43 (s, IH), 8.48 (d, J = 2.0 Hz, IH), 8.82 (dd, J = 1.5, 4.8 Hz, IH), 9.15 (dd, J = 0.7, 2.2 Hz, IH); IR (KBr) 3400, 2950, 1755, 1675, 1600, 1550, 1420, 1375, 1235, and 1050 cm^'1; mass spectrum [(+) FAB], m/z 881 (M + H)⁺, 903 (M + Na)⁺; Anal. Calcd. for C₃₉H₄₅ClN₂O_I9 • 2.0 H,O: C, 51.07; H, 5.38; N, 3.05, Found: C, 50.80; H, 4.83; N, 2.89.

step 2 N-[2-chloro-5-[[(4- 9-α-D-glucopyranosyI-β-D-glucopyranosyl)oxy]methyl] phenyl]-3-pyridinecarboxamide

The title compound was prepared as a white foam (1.97 g, 57%) from N-[2- chloro-5-[[[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-α-D-glucopyranoysl)-β-D- glucopyranosyl]oxy]methyl]phenyl]-3-pyridinecarboxamide using a procedure similar to step 4 of Example 1, mp >106 °C (decomp.); Η ΝMR (DMSO-J₆) δ 3.02- 3.13 (m, 2H), 3.19-3.29 (m, 2H), 3.31-3.39 (m, IH), 3.39-3.50 (m, 3H), 3.55-3.63 (m, 2H), 3.70-3.76 (m, IH), 4.09 (q, J = 5.3 Hz, IH), 4.31 (d, J = 7.9 Hz, IH), 4.49- 4.55 (m, 2H), 4.60 (d, J = 12.5 Hz, IH), 4.84-4.91 (m, 3H), 5.01 (d, J = 3.7 Hz, IH), 5.26 (d, J = 5.1 Hz, IH), 5.43 (d, J = 6.4 Hz, IH), 5.52 (d, J = 3.1 Hz, IH), 7.35 (dd, J = 2.0, 8.3 Hz, IH), 7.54 (d, J = 8.1 Hz, IH), 7.56-7.60 (m, 2H), 8.31 (dt, J = 2.0, 7.9 Hz, IH), 8.77 (dd, J = 1.5, 4.8 Hz, IH), 9.12-9.14 (m, IH), 10.34 (s, IH); IR (KBr) 3390, 2910, 2320, 1660, 1590, 1525, 1475, 1450, 1420, 1360, 1310, 1190, 1140, 1080, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 587 (M + H)⁺, 609 (M + Νa)⁺, Anal. Calcd. for C₂₅H₃₁ClN₂O₁₂ • 1.5 H₂O: C, 48.90; H, 5.58; N, 4.56, Found: C, 49.18; H, 5.52; N, 4.32.

step 3

(R)-N-[2-Chloro-5-[[[4-O-[4',6^,-O-(phenylmethylene)-α-D-glucopyranosyI]-β-D- glucopyranosyl]oxy]methyI] phenyl]-3-pyrϊdinecarboxamide The title compound was prepared as a white solid (1.25 g, 57%) from N-[2- chloro-5-[[(4-( - -D-glucopyranosyl-β-D-glucopyranosyl)oxy]methyl] phenyl]-3- pyridinecarboxamide using a procedure similar to Example 24, mp 208-210 °C; 'H NMR (DMSO-J₆) δ 3.08-3.15 (m, IH), 3.30-3.42 (m, 4H), 3.42-3.51 (m, IH), 3.51- 3.60 (m, 2H), 3.64-3.76 (m, 3H), 4.12 (dd, J = 3.3, 8.6 Hz, IH), 4.33 (d, J = 7.7 Hz, IH), 4.68 (t, J = 5.7 Hz, IH), 4.74 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.30 (t, J = 4.4 Hz, 2H), 5.52 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.63 (d, J = 6.6 Hz, IH), 7.34-7.38 (m, 4H), 7.42-7.46 (m, 2H), 7.54 (d, J = 83 Hz, IH), 7.55- 7.60 (m, 2H), 8.31 (dt, J = 1.8, 7.9 Hz, IH), 8.77 (dd, J = 1.8, 4.8 Hz, IH), 9.13 (dd, J = 0.7, 2.2 Hz, IH), 10.34 (s, IH); IR (KBr) 3530, 3400, 2920, 2830, 1680, 1590, 1540, 1460, 1420, 1380, 1320, 1275, 1150, 1120, 1070, and 1025 cm^"1; mass spectrum [(+) FAB], m/z 675/677 (M + H)⁺, 697/699 (M + Na)⁺; Anal. Calcd. for C₃₂H₃₅ClN₂O₁₂ • 0.5 H₂O: C, 56.18; H, 5.30; N, 4.09, Found: C, 56.31; H, 5.13; N, 4.19.

Example 62

(R)-N-r5-rrr6-O-Benzoyl-4-O-r4',6'-O-(phenylmethylene)- -D-glucopyranosyl1-β-D- glucopyranosylloxy1methvn-2-chlorophenyll-3-pyridinecarboxamide

The title compound was prepared as a off-white glassy solid (0.628 g, 44%) from (R)-N-[2-chloro-5-[[[4-O-[4,6-O-(phenylmethylene)-α-D-glucopyranosyl]-β-D- glucopyranosyl]oxy] methyl] phenyl] -3-pyridinecarboxamide using a procedure similar to Example 2, mp 190-193 °C; Η ΝMR (DMSO- ₆) δ 3.17-3.24 (m, IH), 330-3.43 (m, 2H), 3.50-3.64 (m, 4H), 3.68-3.76 (m, IH), 3.78 (ddd, J = 1.5, 5.1, 9.7 Hz, IH), 4.50 (dd, J = 4.8, 9.9 Hz, IH), 4.36 (dd, J = 5.1, 12.1 Hz, IH), 4.43 (d, J = 7.7 Hz, IH), 4.59-4.64 (m, IH), 4.71 (ABq, J = 12.7 Hz, Δδ = 0.14, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.35 (d, J = 5.1 Hz, IH), 539 (d, J = 5.3 Hz, IH), 5.52 (s, IH), 5.59 (d, J = 3.1 Hz, IH), 5.80 (d, J = 6.4 Hz, IH), 731-737 (m, 4H), 739-7.43 (m, 2H), 7.51 (dd, J = 5.9, 7.9 Hz, 3H), 7.54-7.58 (m, 2H), 7.60-7.66 (m, IH), 7.98 (dd, J = 1.1, 8.1 Hz, 2H), 8.29 (dt, J = 1.8, 7.9 Hz, IH), 8.77 (dd, J = 1.8, 4.8 Hz, IH), 9.11 (d, J = 2.0 Hz, IH), 1031 (s, IH); IR (KBr) 3410, 3080, 2900, 2850, 1720, 1680, 1590, 1530, 1440, 1420, 1375, 1320, 1275, 1070, 1025, 755, and 710 cm^"1; mass spectrum [(+) FAB], m/z 779/781 (M + H)⁺, 801/803 (M + Νa)⁺; Anal. Calcd. for C₃₉H₃₉ClN₂O_I3 • 0.5 HLO: C, 59.43; H, 5.12; N, 3.55, Found: C, 59.34; H, 4.91; N, 3.45. Example 63

Furan-2-carboxylic acid ( 5-1(4'.6'-0-benzylidene-β-D-maltosyl)-oxy-methyll-2- chloro-phenyl }-amide step 1 Furan-2-carboxyIic acid {5-[(2,2',3,3',4',6,6'-hepta-O-acetyl-β-D-maltosyl)- oxymethyl]-2-chloro-phenyl}-amide

The title compound was prepared as a white foam (1.47 g, 94%) from 2- chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenylamine using a procedure similar to step 3 of Example 1, mp >85 °C (decomp.); Η NMR (DMSO-J₆) δ 1.93 (s, 6H), 1.94 (s, 3H), 1.969 (s, 3H), 1.972 (s, 3H), 2.01 (s, 3H), 2.07 (s, 3H), 3.92-4.02 (m, 4H), 4.12-4.23 (m, 2H), 4.38 (dd, J = 2.2, 12.1 Hz, IH), 4.67 (ABq, J = 13.0 Hz, Δδ = 0.15, 2H), 4.73 (dd, J = 7.9, 9.4 Hz, IH), 4.83-4.90 (m, 2H), 4.97 (t, J = 9.7 Hz, IH), 5.21 (t, J = 10.1 Hz, IH), 5.27 (d, J = 4.2 Hz, IH), 5.31 (d, J = 9.2 Hz, IH), 6.70 (q, J = 1.8 Hz, IH), 7.18 (dd, J = 2.0, 8.3 Hz, IH), 7.32 (d, J = 3.5 Hz, IH), 7.53 (d, J = 8.1 Hz, IH), 7.57 (d, J = 2.0 Hz, IH), 7.93-7.95 (m, IH), 9.84 (s, IH); IR (KBr) 3390, 3130, 2950, 1755, 1690, 1590, 1530, 1445, 1420, 1375, 1320, 1230, 1140, and 1040 cm^"1; mass spectrum [(+) FAB], m/z 870 (M + H)⁺, 892 (M + Na)\ Anal. Calcd. for C₃₈H₄₄C1NO₂₀- 1.0 H₂O: C, 5139; H, 5.22; N, 1.58, Found: C, 51.00; H, 4.93; N, 1.51.

step 2

Furan-2-carboxylic acid {2-chloro-5-[(β-D-maltosyI)-oxy-methyl]-phenyl}-amide A solution containing furan-2-carboxylic acid {5-[(2,2'33\4',6,6'-hepta-O- acetyl-β-D-maltosyl)-oxymethyl]-2-chloro-phenyl}-amide (136 g, 1.56 mmol) and 25 weight % NaOMe in MeOH (26.8 μL, 0.468 mmol) in MeOH (41 ml) was stirred at rt for 18 h. At this point, the mixture was concentrated, and the resulting residue was triturated with Et₂O to afford the product (0.890 g, 99%) as a white foam, mp >127 °C (decomp.); Η NMR (DMSO- ₆) δ 3.01-3.12 (m, 2H), 3.21 (dd, J = 3.7, 9.7 Hz, IH), 3.24-3.29 (m, IH), 3.29-338 (m, 2H), 338-3.50 (m, 3H), 3.54-3.63 (m, 2H), 3.73 (d, J = 12.3 Hz, IH), 4.30 (d, J = 7.7 Hz. IH), 4.45-4.58 (m, 2H), 4.71 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 4.83-4.93 (bs, 2H), 5.01 (d, J = 4.0 Hz, IH), 5.18-532 (bs, IH), 534-5.58 (bs, 2H), 6.69 (dd, J = 1.5, 33 Hz, IH), 7.26-733 (m, 2H), 7.50 (d, J = 83 Hz, IH), 7.62 (d, J = 2.0 Hz, IH), 7.92-7.94 (m, IH), 9.82-9.94 (bs, IH); IR (KBr) 3400, 2920, 2880, 1675, 1590, 1530, 1445, 1425, 1365, 1315, 1140, 1080, 1030, and 755 cm^"1; mass spectrum [(+) FAB], m/z 598/600 (M + Na)⁺, Anal. Calcd. for C₂₄H₃₀C1NO₁₃ - 0.5 H₂O: C, 49.28; H, 5.34; N, 2.39, Found: C, 49.06; H, 5.34; N, 2.21.

step 3

Furan-2-carboxyIic acid {5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl}-amide The title compound was prepared as a white solid (0.352 g, 63%) from furan-

2-carboxylic acid {2-chloro-5-[(β-D-maltosyl)-oxy-methyl]-phenyl}-amide using a procedure similar to Example 24, mp 224-226 °C; ¹H NMR (DMSO-ύQ δ 3.07-3.14 (m, IH), 3.27-3.42 (m, 4H), 3.42-3.49 (m, IH), 3.51-3.59 (m, 2H), 3.63-3.76 (m, 3H), 4.11 (dd, J = 2.4, 7.9 Hz, IH), 4.32 (d, J = 7.7 Hz, IH), 4.67 (t, J = 5.9 Hz, IH), 4.72 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.29 (t, J = 6.2 Hz, 2H), 5.51 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.62 (d, J = 6.8 Hz, IH), 6.68-6.72 (M, IH), 730-734 (m, 2H), 734-738 (m, 3H), 7.41-7.46 (m, 2H), 7.52 (d, J = 8.1 Hz, IH), 7.62 (s, IH). 7.94 (t, J = 0.9 Hz, IH), 9.88 (s, IH); IR (KBr) 3390, 2920, 2850, 1680, 1600, 1590. 1530, 1455, 1430, 1385, 1320, 1280, 1140, 1070, 1050, 1025, and 750 cm^"1; mass spectrum [(-) FAB], m/z 662 (M - H)^"; Anal. Calcd. for C₃₁H₃₄ClNO₁₃ • 1.0 ITO: C, 54.59; H, 532; N, 2.05, Found: C, 54.82; H, 4.91; N, 2.03.

Example 64

Furan-2-carboxylic acid {5-r(6-O-benzoyl-4'.6'-O-benzylidene-β-D-maltosyl)-oxy- methyll-2-chloro-phenyl l-amide

The title compound was prepared as a white solid (0.130 g, 47%) from furan- 2-carboxylic acid {5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}-amide using a procedure similar to Example 2, mp >142 °C (decomp.); Η NMR (DMSΟ-J₆) δ 3.16-3.23 (m, IH), 3.27-3.42 (m, 2H), 3.49-3.64 (m, 4H), 3.71 (dd, J = 5.1, 10.1 Hz, IH), 3.75-3.80 (m, IH), 4.05 (dd, J = 4.8, 9.9 Hz, IH), 4.36 (dd, J = 5.3, 12.3 Hz, IH), 4.42 (d, J = 7.9 Hz, IH), 4.58-4.63 (m, 2H), 4.78 (d, J = 12.7 Hz, IH), 5.14 (d, J = 3.7 Hz, IH), 5.34 (d, J = 5.3 Hz, IH), 538 (d, J = 53 Hz, 1H), 5.52 (s, IH), 5.58 (d, J = 2.9 Hz, IH), 5.79 (d, J = 6.2 Hz, IH), 6.69 (q, J = 1.8 Hz, IH), 7.26-732 (m, 2H), 733-738 (m, 3H), 738-7.44 (m, 2H), 7.47 (d, J = 8.3 Hz, IH), 7.51 (t, J = 7.9 Hz, 2H), 7.61 (d, J = 2.0 Hz, IH), 7.61-7.66 (m, IH), 7.93 (dd, J = 0.7, 2.6 Hz, IH), 7.99 (dd, J = 53, 7.0 Hz, 2H), 9.85 (s, IH); IR (KBr) 3460, 3380, 3140, 3080, 2880, 1730, 1660, 1590, 1535, 1445, 1425, 1375, 1320, 1275, 1140, 1120, 1075, 1025, 980, and 715 cm^"1; mass spectrum [(+) ESI], m/z 768 (M + H)⁺, 790 (M + Na)⁺; Anal. Calcd. for C₃₈H₃₈ClNO₁₄ • 1.0 H₂O: C, 58.05; H, 5.13; N, 1.78, Found: C, 57.96; H, 4.93; N, 1.76.

Example 65

N-l2-Chloro-5-r(4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl1-phenyl)-pent-4- enamide step 1

N-[2-ChIoro-5-[[[2,3,6-tri-O-acetyI-4-O-(2,3,4,6-tetra-O-acetyl-α-D- glucopyranosyl)-β-D-glucopyranosyI]oxy]methyI]phenyl]-4-pentenamide

To a stirred solution of 4-pentenoic acid (57.9 μL, 0.567 mmol) and DMF (cat. amt.) in CH₂C1₂ (3 mL) at rt was added oxalyl chloride (49.4 μL, 0.567 mmol) dropwise. After 5 min. at this temperature, it was heated to 40 °C for an additional 10 min. This completed the preparation of the acid chloride starting material. At this point, to a second stirred solution of ΝaH (0.0206 g, 0.515 mmol) and CH₂C1₂ (3 mL) at rt was added 2-chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenylamine (0.400 mg, 0.515 mmol). After 10 min., the acid chloride solution was added to this solution dropwise. The reaction was stirred at rt for 1 h and then diluted with EtONc (100 mL). This layer was washed with IN HC1 (10 mL), sat. ΝaHCO₃ (10 mL), and brine (10 mL) and then dried (MgSO₄). After concentration, the oilly residue was purified by flash chromatography (10:90 to 70:30 EtOAcφetroleum ether gradient) to afford the product (0.321 g, 73%) as a white foam, mp >68 °C (decomp.); Η NMR (DMSO-J₆) δ 1.93 (s, 3H), 1.94 (s, 6H), 1.969 (s, 3H), 1.972 (s, 3H), 2.01 (s, 3H), 2.08 (s, 3H), 2.29-236 (m, 2H), 2.44-2.49 (m, 2H), 3.92-4.02 (m, 4H), 4.13-4.22 (m, 2H), 4.38 (d, J = 10.1 Hz, IH), 4.53 (d, J = 12.7 Hz, IH), 4.69-4.75 (m, 2H), 4.84 (d, J = 3.7 Hz, IH), 4.87 (d, J = 2.9 Hz, IH), 4.94-5.01 (m, 2H), 5.07 (dd, J = 2.0, 17.4 Hz, IH). 5.21 (t, J = 9.7 Hz, IH), 5.27 (d, J = 3.7 Hz, IH), 5.31 (d, J = 8.8 Hz, IH), 5.80-5.91 (m, IH), 7.08 (dd, J = 2.0, 83 Hz, IH), 7.46 (d, J = 8.1 Hz, IH), 7.61 (s, IH), 9.49 (s, IH); IR (KBr) 3400, 2950, 1755, 1690, 1630, 1590, 1525, 1420, 1370, 1235, and 1050 cm^"1; mass spectrum [(+) FAB], m/z 858/860 (M + H)⁺, 880/882 (M + Na)⁺, Anal. Calcd. for C₃₈H₄₈ClNO₁₉ • 0.5 H₂O: C, 52.63; H, 5.69; N, 1.62, Found: C, 52.65; H, 5.66; N, 1.59.

step 2 N-{2-Chloro-5-[(β-D-maltosyl)-oxy-methyl]-phenyl}-pent-4-enyIamide

The title compound was prepared as an off-white solid (0.0614 g, 93%) from N-[2-chloro-5-[[[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)- β-D-glucopyranosyl]oxy]methyl]phenyl]-4-pentenamide and a procedure similar to step 4 of Example 1, mp >103 °C (decomp.); Η ΝMR (DMSO- ₆) δ 230-237 (m,

2H), 2.43-2.49 (m, 2H), 3.02-3.10 (m, 2H), 3.19-3.28 (m, 2H), 330-3.49 (m, 5H),

3.54-3.63 (m, 2H), 3.72 (d, J = 10.8 Hz, IH), 4.28 (d, J = 7.7 Hz, IH), 4.40-4.67 (m, 2H), 4.54 (d, J = 12.3 Hz, IH), 4.72-4.96 (m, 2H), 4.80 (d, J = 12.3 Hz, IH), 4.96-

5.04 (m, 2H), 5.08 (dd, J = 1.5, 17.1 Hz, IH), 5.13-533 (bs, IH), 533-5.59 (bs, 2H),

5.80-5.92 (m, IH), 7.22 (dd, J = 1.5, 8.1 Hz, IH), 7.44 (d, J = 8.1 Hz, IH), 7.63 (s,

IH), 9.51 (s, IH); IR (KBr) 3400, 2910, 1665, 1590, 1530, 1440, 1420, 1370, 1310,

1140, 1070, and 1035 cm^"1; mass spectrum [(+) FAB], m/z 564/566 (M + H)⁺, 586/588 (M + Νa)⁺, Anal. Calcd. for C^H^CINO,,: C, 51.11; H, 6.06; N, 2.48,

Found: C, 51.17; H, 6.06; N, 2.36.

step 3

N-{2-Chloro-5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-phenyl}-pent-4- enamide

The title compound was prepared as a white powder (0.102 g, 88%) from N- {2-chloro-5-[(β-D-maltosyl)-oxy-methyl]-phenyl}-pent-4-enylamide using a procedure similar to Example 24, mp 191-193 °C; Η ΝMR DMSO-d₆) δ 230-237 (m, 2H), 2.43-2.49 (m, 2H), 3.06-3.13 (m, IH), 3.28-333 (m, IH), 334-3.41 (m, 3H), 3.43-3.49 (m, IH), 3.51-3.60 (m, 2H), 3.64-3.75 (m, 3H), 4.11 (dd, J = 2.9, 8.1 Hz, IH), 4.30 (d, J = 1.1 Hz, IH), 4.67 (t, J = 5.9 Hz, IH), 4.68 (ABq, J = 12.3 Hz, Δδ = 0.22, 2H), 4.99 (dd, J = 2.0, 10.3 Hz, IH), 5.08 (dd, J = 1.8, 17.1 Hz. IH), 5.14 (d, J = 3.7 Hz, IH), 5.25 (d, J = 5.3 Hz, IH), 5.30 (d, J = 5.3 Hz, IH), 5.51 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.63 (d, J = 6.6 Hz, IH), 5.81-5.91 (m, IH), 7.23 (dd, J = 2.0, 8.3 Hz, IH), 734-738 (m, 3H), 7.42-7.47 (m, 3H), 7.64 (d, J = 1.5 Hz, IH), 9.51 (s, IH); IR (KBr) 3410, 2900, 2870, 1670, 1640, 1590, 1535, 1445, 1420, 1375, 1370, 1325, 1310, 1270, 1150, 1070, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 652/654 (M + H)\ 674/676 (M + Na)⁺; Anal. Calcd. for C₃₁H₃₈ClNO₁₂: C, 57.10; H, 5.87; N, 2.15, Found: C, 56.76; H, 5.81; N, 2.31.

Example 66 N-l2-Chloro-5-l(6-O-benzoyl-4'.6'-O-benzilidene-β-D-maltosv -oxy-methyll- phenyl } -pent-4-enamide

The title compound was prepared as a white solid (1.10 g, 84%) from N-{2- chloro-5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-phenyl}-pent-4-enamide using a procedure similar to Example 2, mp >110 °C (decomp.); Η ΝMR (DMSO- d₆) δ 2.28-235 (m, 2H), 2.41-2.46 (m, 2H), 3.16-3.23 (m, IH), 3.28-3.43 (m, 2H), 3.48-3.64 (m, 4H), 3.68-3.73 (m, IH), 3.73-3.79 (m, IH), 4.03-4.08 (m, IH), 4.33- 4.38 (m, IH), 4.39 (d, J = 7.7 Hz, IH), 4.58-4.63 (m, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 4.95-4.99 (m, IH), 5.06 (dd, J = 2.0, 17.4 Hz, IH), 5.13 (d, J = 4.0 Hz, IH), 5.35 (t, J = 4.8 Hz, 2H), 5.52 (s, IH), 5.57 (d, J = 2.9 Hz, IH), 5.80 (d, J = 6.4 Hz, IH), 5.81-5.90 (m, IH), 7.20 (dd, J = 2.0, 8.1 Hz, IH), 733-737 (m, 3H), 738-7.43 (m, 3H), 7.50-7.55 (m, 2H), 7.62 (d, J = 1.5 Hz, IH), 7.63-7.68 (m, IH), 7.99 (dd, J = 1.1, 8.3 Hz, 2H), 9.49 (s, IH); IR (KBr) 3400, 3270, 3080, 2910, 2880, 1725, 1660, 1590, 1530, 1445, 1425, 1375, 1325, 1275, 1140, 1070, 1025, 990, and 715 cm^"1; mass spectrum [(+) FAB], m/z 756/758 (M + H)⁺, 778/780 (M + Νa)⁺; Anal. Calcd. for C₃₈H₄₂ClNO₁₃ ^• 0.5 H₂O: C, 59.65; H, 5.66; N, 1.83, Found: C, 59.73; H, 5.64; N, 1.75.

Example 67

5-(6-O-Benzoyl-4'.6'-O-benzylidene-β-D-maltosyl)-oχy-methyl-2-chloro- phenylamine

To a stirred solution of N-{2-chloro-5-[(6-O-benzoyl-4',6'-O-benzilidene-β- D-maltosyl)-oxy-methyl]-phenyl}-pent-4-enamide (0.681 g, 0.901 mmol) in THF^O (1:1, 50 mL) at rt was added iodine (0.685 g, 2.70 mmol). After 5 min. at this temperature, it was quenched with solid Na₂S₂O₃ until brown color went clear. The mixture was diluted with EtOAc (100 mL), washed with brine (10 mL), and then dried (Na^O . After concentration, the oilly residue was purified by flash chromatography (1:99 to 13:87 MeOH:CHCl₃ gradient) to afford the product (0.483 g, 80%) as a white solid, mp 168-171 °C; ^!H NMR (DMSO-J₆) δ 3.17 (t, J = 8.3 Hz, IH), 331-3.43 (m, 2H), 3.48-3.63 (m, 4H), 3.68-3.77 (m, 2H), 4.05 (dd, J = 4.8, 9.9 Hz, IH), 432-438 (m, 2H), 4.52 (ABq, J = 11.9 Hz, Δδ = 0.18, 2H), 4.61 (d, J = 10.5 Hz, IH), 5.14 (d, J = 3.7 Hz, IH), 5.22-532 (bs, 3H), 532-539 (bs, IH), 5.52 (s, IH), 5.57 (s, IH), 5.76-5.83 (bs, IH), 6.53 (dd, J = 1.8, 8.1 Hz, IH), 6.75 (d, J = 2.0 Hz, IH), 7.08 (7.9 Hz, IH), 733-737 (m, 3H), 738-7.44 (m, 2H), 7.51-7.56 (m, 2H), 7.63-7.68 (m, IH), 8.00 (dd, J = 0.7, 7.9 Hz, 2H); IR (KBr) 3390, 2920, 2860, 1730, 1620, 1590, 1495, 1440, 1430, 1370, 1315, 1270, 1070, 1025, 1000, and 710 cm^"1; mass spectrum [(+) FAB], m/z 674/676 (M + H)⁺, 696/698 (M + Na)⁺; Anal. Calcd. for C₃₃H₃₆ClNO₁₂ • 1.0 LLO: C, 57.27; H, 5.53; N, 2.02, Found: C, 57.28; H, 5.39; N, 1.99.

Example 68

(4-Chloro)-benzyl-4'.6'-O-benzylidene-β-D-maltoside step 1

(4-Chloro-benzyl)-2,2',3,3\4',6,6'-hepta-O-acetyl-β-D-maltoside

The title compound was prepared as white needles (3.96 g, 73%) from acetobromomaltose using 4-chloro-benzyl alcohol and a procedure similar to step 1 of Example 1, mp 138-141 °C; Η NMR DMSO-d₆) δ 1.994 (s, 3H), 1.999 (s, 3H), 2.00 (s, 3H), 2.025 (s, 3H), 2.029 (s, 3H), 2.10 (s, 3H), 2.16 (s, 3H), 3.66 (ddd, J = 2.9, 4.4, 9.9 Hz, IH), 3.96 (ddd, J = 2.4, 4.0, 10.1 Hz, IH), 4.00-4.07 (m, 2H), 4.21-4.28 (m, 2H), 4.51 (dd, J = 2.9, 12.3 Hz, IH), 4.56 (d, J = 2.4 Hz, IH), 4.58 (d, J = 6.8 Hz, IH), 4.80-4.92 (m, 3H), 5.05 (t, J = 9.9 Hz, IH), 5.22 (t, J = 9.2 Hz, IH), 5.35 (dd, J = 9.4, 10.3 Hz, IH), 5.41 (d, J = 4.0 Hz, IH), 7.21 (d, J = 8.6 Hz, 2H), 7.32 (d, J = 83 Hz, 2H); IR (KBr) 3480, 2960, 2880, 1755, 1650, 1610, 1495, 1440, 1375, 1335, 1240, 1170, 1135, 1050, 935, 910, 820, and 615 cm^"1; mass spectrum [(+) FAB], mz 761/763 (M + H)⁺, 783/785 (M + Na)⁺, Anal. Calcd. for C₃₃H₄₁ClO_l8: C, 52.08; H, 5.43; N, 0.00, Found: C, 51.88; H, 5.37; N, 0.01.

step 2 (4-Chloro-benzyl)-β-D-maltoside

The title compound was prepared as a white foam (1.55 g, 95%) from (4- chloro-benzyl)-2,2',3,3',4',6,6'-hepta-O-acetyl-β-D-maltoside using a procedure similar to step 4 of Example 1, mp >102 °C (decomp.); Η NMR (DMSO-J₆) δ 3.02- 3.11 (m, 2H), 3.19-3.26 (m, 2H), 3.29-336 (m, 2H), 337-3.49 (m, 3H), 3.54-3.64 (m, 2H), 3.72 (d, J = 11.0 Hz, IH), 4.27 (d, J = 7.7 Hz, IH), 439-4.65 (bs, 2H), 4.69 (ABq, J = 12.5 Hz, Δδ = 0.20, 2H), 4.76-5.03 (bs, IH), 5.01 (d, J = 3.7 Hz, IH), 5.10- 5.63 (bs, 4H), 737-7.43 (m, 4H); IR (KBr) 3340, 2920, 2890, 1625, 1600, 1490, 1450, 1400, 1365, 1150, 1075, 1030, and 820 cm^'1; mass spectrum [(+) ESI], m/z 484.4/486.4 (M + NH₄)⁺, Anal. Calcd. for C.Ji^ClO,, • 0.5 H₂O: C, 47.96; H, 5.93; N, 0.00, Found: C, 47.62; H, 5.82; N, 0.24.

step 3 (4-Chloro)-benzyl-4',6'-O-benzylidene-β-D-maltoside

The title compound was prepared as a white foam (1.20 g, 65%) from (4- chloro-benzyl)-β-D-maltoside using a procedure similar to Example 24, mp 187-

188°C; 'H NMR (DMSO- ₆) δ 3.10 (t, J = 8.3 Hz, IH), 3.27-3.41 (m, 4H), 3.46 (t, J =

8.8 Hz, IH), 3.51-3.59 (m, 2H), 3.64-3.75 (m, 3H), 4.12 (dd, J = 3.1, 8.1 Hz, IH),

4.29 (d, J = 7.7 Hz, IH), 4.62-4.71 (bs, IH), 4.70 (ABq, J = 12.5 Hz, Δδ = 0.20, 2H),

5.14 (d, J = 3.1 Hz, IH), 5.21-536 (bs, 2H), 5.47-5.55 (bs, IH), 5.57 (s, IH), 5.59- 5.67 (bs, IH), 734-739 (m, 3H), 739-7.46 (m, 6H); IR (KBr) 3570, 3430, 3080,

2870, 1615, 1495, 1450, 1435, 1375, 1360, 1340, 1255, 1160, 1120, 1070, 1030,

1000, and 755 cm^"1; mass spectrum [(+) ESI], m/z 555/557 (M + H)⁺, 572/574 (M +

NH₄)⁺, 1126/1128 (2M + NH₄)⁺; Anal. Calcd. for C₂₆H₃₁ClO_n: C, 56.27; H, 5.63; N,

0.00, Found: C, 56.09; H, 5.73; N, 0.23. Example 69

Benzoic acid l-O-(4-chloro)-benzvI-4'.6'-O-benzylidene-6-deoxy-β-D-malto-6-yl ester

The title compound was prepared as a white solid (0.800 g, 66%) from (4- chloro)-benzyl-4',6'-O-benzylidene-β-D-maltoside using a procedure similar to Example 2, mp >110 °C (decomp.); Η NMR (DMSO-d₆) δ 3.16-3.23 (m, IH), 3.27- 3.43 (m, 2H), 3.49-3.64 (m, 4H), 3.68-3.78 (m, 2H), 4.02-4.08 (m, IH), 4.35 (dd, J = 5.5, 12.5 Hz, IH), 4.39 (d, J = 7.9 Hz, IH), 4.57-4.62 (m, IH), 4.67 (ABq, J = 12.5 Hz, Δδ = 0.14, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.36 (dd, J = 5.1, 10.5 Hz, 2H), 5.52 (s, IH), 5.58 (d, J = 2.9 Hz, IH), 5.80 (d, J = 6.2 Hz, IH), 733-7.43 (m, 9H), 7.53 (t, J = 7.5 Hz, 2H), 7.66 (td, J = 1.1, 7.7 Hz, IH), 7.99 (dd, J = 0.9, 8.1 Hz, 2H); IR (KBr) 3410, 2890, 1725, 1630, 1610, 1495, 1440, 1380, 1320, 1275, 1075, 1025, and 710 cm^"1; mass spectrum [(-) FAB], m/z 657/659 (M - H)^"; Anal. Calcd. for C₃₃H₃₅ClO₁₂ • 1.0 H O: C, 58.54; H, 5.51; N, 0.00, Found: C, 58.75; H, 536; N, 0.14.

Example 70

4-Benzoyl-N-l5-r(4'.6'-O-benzylidene-β-D-maltosyl -oxy-methyll-2-chloro-phenyl}- benzamide step 1 4-BenzoyI-N-{2-chloro-5-[(2,2',3,3',4',6,6'-hepta-O-acetyl-β-D-maltosyl)-oxy- methyl]-phenyl}-benzamide

The title compound was prepared as a white foam (0.240 g, 94%) from 2- chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenylamine using / benzoyl- benzoic acid and a procedure similar to step 1 of Example 65, mp >84 °C (decomp.); 'H ΝMR (DMSO-J₆) δ 1.93 (s, 3H), 1.94 (s, 6H), 1.97 (s, 6H), 2.01 (s, 3H), 2.08 (s, 3H), 3.93-4.03 (m, 4H), 4.15 (dd, J = 4.6, 12.3 Hz, IH), 4.21 (dd, J = 4.6, 12.1 Hz, IH), 4.39 (dd, J = 2.2, 11.9 Hz, IH), 4.70 (ABq, J = 12.7 Hz, Δδ = 0.14, 2H), 4.74 (dd, J = 8.1, 9.1 Hz, IH), 4.86 (dd, J = 4.0, 10.5 Hz, IH), 4.90 (d, J = 8.1 Hz, IH), 4.98 (t, J = 9.7 Hz, IH), 5.21 (dd, J = 9.7, 10.5 Hz, IH), 5.28 (d, J = 4.0 Hz, IH), 5.31 (dd, J = 8.6, 9.4 Hz, IH), 7.22 (dd, J = 2.0, 8.3 Hz, IH), 7.52 (d, J = 2.0 Hz, IH), 7.55-7.62 (m, 3H), 7.69-7.74 (m, IH), 7.76-7.80 (m, 2H), 7.85-7.88 (m, 2H), 8.11-8.14 (m, 2H), 10.30 (s, IH); IR (KBr) 3400, 3010, 2950, 1755, 1675, 1650, 1590, 1530, 1440, 1420, 1370, 1230, 1130, and 1040 cm^'1; mass spectrum [(+) FAB], m/z 984/986 (M + H)⁺, 1006/1008 (M + Na)\ Anal. Calcd. for C₄₇H₅₀C1NO₂₀: C, 57.35; H, 5.12; N, 1.42, Found: C, 57.11; H, 5.03; N, 132.

step 2

4-Benzoyl-N-{2-chloro-5-[3,4-dihydroxy-6-hydroxymethyl-5-(3,4,5-trihydroxy-6- hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxymethyl]- phenyl}-benzamide

The title compound was prepared as a off-white glassy solid (1.50 g, 95%) from 4-benzoyl-N-{2-chloro-5-[(2,2',3,3',4',6,6'-hepta-O-acetyl-β-D-maltosyl)-oxy- methyl] -phenyl }-benzamide using a procedure similar to step 4 of Example 1, mp

>131 °C (decomp.); Η ΝMR (OMSO-d₆) δ 3.02-332 (m, 4H), 332-3.40 (m, 2H),

3.40-3.50 (m, 3H), 3.55-3.64 (m, 2H), 3.73 (d, J = 10.8 Hz, IH), 431 (d, J = 7.9 Hz,

IH), 4.48-4.53 (bs, IH), 4.53-4.59 (bs, IH), 4.61 (d, J = 12.5 Hz, IH), 4.83-4.92 (m, 3H), 5.02 (d, J = 4.0 Hz, IH), 5.21-531 (bs, IH), 536-5.48 (bs, IH), 5.48-5.56 (bs,

IH), 7.32 (dd, J = 2.0, 8.3 Hz, IH), 7.53 (d, J = 8.1 Hz, IH), 7.56-7.62 (m, 3H), 7.69-

7.74 (m, IH), 7.78 (dd, J = 1.3, 8.3 Hz, 2H), 7.86 (d, J = 8.6 Hz, 2H), 8.14 (d, J = 8.6

Hz, 2H), 10.33 (s, IH); IR (KBr) 3410, 2910, 1660, 1590, 1530, 1440, 1420, 1370,

1325, 1275, 1140, 1100, 1080, 1030, 910, and 710 cm^"1; mass spectrum [(+) FAB], m/z 690/692 (M + H)⁺, 712/714 (M + Νa)⁺, Anal. Calcd. for C₃₃H₃₆ClNO₁₃ • 1.0 Ufi:

C, 55.97; H, 5.41; N, 1.98, Found: C, 55.98; H, 5.36; N, 1.97.

step 3

4-Benzoyl-N-{5-[(4',6'-C-benzylidene-β-D-maltosyI)-oxy-methyl]-2-chloro- phenyl}-benzamide

The title compound was prepared as a white solid (1.07 g, 66%) from 4- benzoyl-N-{2-chloro-5-[3,4-dihydroxy-6-hydroxymethyl-5-(3,4,5-trihydroxy-6- hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxymethyl]-phenyl}- benzamide using a procedure similar to Example 24, mp 208-211 °C; Η ΝMR (DMSO- .) δ 3.09-3.15 (m, IH), 3.29-3.42 (m, 4H), 3.47 (td, J = 3.1, 8.8 Hz, IH), 3.52-3.60 (m, 2H), 3.64-3.76 (m, 3H), 4.12 (dd, J = 3.1, 8.3 Hz, IH), 4.34 (d, J = 7.7 Hz, IH), 4.68 (t, J = 7.5 Hz, IH), 4.75 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.30 (dd, J = 1.8, 5.3 Hz, 2H), 5.52 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.63 (d, J = 6.6 Hz, IH), 734-738 (m, 4H), 7.42-7.46 (m, 2H), 7.55 (d, J = 8.1 Hz, IH), 7.56-7.62 (m, 3H), 7.69-7.74 (m, IH), 7.76-7.80 (m, 2H), 7.87 (d, J = 8.3 Hz, 2H), 8.14 (d, J = 8.3 Hz, 2H), 10.33 (s, IH); IR (KBr) 3410, 3070, 2920, 2860, 1655, 1590, 1530, 1445, 1425, 1380, 1330, 1275, 1145, 1070, 1030, 1000, 910, and 700 cm^" '; mass spectrum [(+) FAB], m/z 778/780 (M + H)⁺, 800/802 (M + Na)⁺; Anal. Calcd. for C₄₀H₄₀C1NO₁₃- 0.5 H.O: C, 61.03; H, 5.25; N, 1.78, Found: C, 61.11; H, 4.86; N, 1.74.

Example 71

4-Benzoyl-N-(5-r(6-benzoyl-oxy-4'.6'-O-benzylidene-β-D-maltosvI -oxy-methvn-2- chloro-phenyl } -benzoic acid amide

The title compound was prepared as a white solid (0.352 g, 63%) from 4- benzoyl-N-{5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- benzamide using a procedure similar to Example 2, mp >135 °C (decomp.); ^!H ΝMR (DMSO-J₆) δ 3.18-3.24 (m, IH), 332-3.43 (m, 2H), 3.50-3.65 (m, 4H), 3.72 (td, J = 53, 10.1 Hz, IH), 3.77-3.82 (m, IH), 4.05 (dd, J = 4.8, 10.1 Hz, IH), 436 (dd, J = 4.8, 12.1 Hz, IH), 4.43 (d, J = 7.9 Hz, IH), 4.62 (d, J = 10.3 Hz, IH), 4.72 (ABq, J = 12.7 Hz, Δδ = 0.14, 2H), 5.14 (d, J = 3.7 Hz, IH), 532-537 (m, IH), 5.40 (d, J = 4.4 Hz, IH), 5.52 (s, IH), 5.59 (s, IH), 5.80 (d, J = 5.5 Hz, IH), 731-737 (m, 4H), 7.39- 7.43 (m, 2H), 7.48-7.53 (m, 3H), 7.56-7.66 (m, 4H), 7.71 (tt, J = 1.1, 6.8 Hz, IH), 7.77 (dd, J = 1.1, 7.9 Hz, 2H), 7.85 (d, J = 8.6 Hz, 2H), 7.99 (dd, J = 0.9, 8.1 Hz, 2H), 8.12 (d, J = 8.6 Hz, 2H), 10.33 (s, IH); IR (KBr) 3420, 3080, 2850, 1720, 1660, 1600, 1530, 1440, 1420, 1370, 1320, 1275, 1140, 1070, 1030, and 715 cm^"1; mass spectrum [(+) FAB], m/z 882 (M + H)⁺, 904/906 (M + Νa)⁺; Anal. Calcd. for C₄₇H₄₄ClNO₁₄ • 1.0 H₂O: C, 62.70; H, 5.15; N, 1.56, Found: C, 62.83; H, 5.02; N, 1.70. Example 72

4-BenzovI-N-{5-r(4^".6'-O-benzylidene-6-O-(2-iodo)-benzoyl-β-D-maltosyl^N)-oxy- methyl] -2-chloro-phenyl } -benzamide

The title compound was prepared as a white solid (0.145 g, 32%) from 4- benzoyl-N-{5-[(4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- benzamide using o-I-BzCl and a procedure similar to Example 2, mp >122 °C (decomp.); Η ΝMR (DMSΟ-J₆) δ 3.16-3.23 (m, IH), 3.28-3.45 (m, 2H), 3.49-3.67 (m, 4H), 3.75 (dd, I = 4.8, 7.5 Hz, IH), 3.78-3.84 (m, IH), 4.14 (dd, J = 4.6, 9.7 Hz, IH), 4.36 (dd, J = 5.5, 12.1 Hz, IH), 4.44 (d, J = 7.7 Hz, IH), 4.61-4.67 (m, IH), 4.73 (ABq, J = 12.7 Hz, Δδ = 0.15, 2H), 5.16 (d, J = 4.0 Hz, IH), 5.38 (dd, J = 53, 10.5 Hz, 2H), 5.55 (s, IH), 5.60 (d, J = 2.6 Hz, IH), 5.88 (d, J = 6.2 Hz, IH), 7.26 (td, J = 1.8, 7.9 Hz, IH), 731-738 (m, 4H), 7.40-7.45 (m, 2H), 7.48-7.53 (m, 2H), 7.56-7.62 (m, 3H), 7.71 (tt, J = 1.3, 6.8 Hz, IH), 7.75-7.79 (m, 3H), 7.85 (dd, J = 1.8, 6.6 Hz, 2H), 8.00 (dd, J = 1.1, 8.1 Hz, IH), 8.12 (dd, J = 1.8, 6.6 Hz, 2H), 10.30 (s, IH); IR (KBr) 3410, 3070, 2850, 1730, 1655, 1590, 1525, 1440, 1420, 1375, 1280, 1250, 1140, 1070, 1025, and 705 cm^'1; mass spectrum [(+) FAB], m/z 1008 (M + H)⁺, 1030 (M + Νa)⁺: Anal. Calcd. for C₄₇H ₃ClIΝO₁₄ • 0.5 H₂O: C, 55.50; H, 4.36; N, 1.38, Found: C, 55.14; H, 4.22; N, 136.

Example 73

4-Benzoyl-N-{5-[(4^'.6'-O-benzylidene-6-O-(3-iodo-benzoyl)-β-D-maltosyl)-oxy- m ethyl] -2-chloro-phenyl } -benzamide

The title compound was prepared as a white solid (0.244 g, 54%) from 4- benzoyl-N-{5-[(4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- benzamide using w-I-BzCl (prepared from m-I-benzoic acid and oxalyl chloride) and a procedure similar to Example 2, mp 185-188.5 °C; Η ΝMR (DMSΟ-J₆) δ 3.18- 3.24 (m, IH), 3.27-3.43 (m, 2H), 3.50-3.63 (m, 4H), 3.71 (td, J = 4.6, 9.9 Hz, IH), 3.77-3.82 (m, IH). 4.06 (dd, J = 4.8, 9.9 Hz, IH), 4.35 (dd, J = 5.5, 12.1 Hz, IH), 4.44 (d, J = 7.7 Hz. IH), 4.61-4.67 (m, IH), 4.73 (ABq, J = 12.5 Hz, Δδ = 0.13, 2H), 5.14 (d, J = 4.0 Hz. IH), 5.34 (d, J = 5.3 Hz, IH), 5.39 (d, J = 5.1 Hz, IH). 5.53 (s, IH), 5.58 (d, J = 2.9 Hz, IH), 5.79 (d, J = 6.2 Hz, IH), 731 (d, J = 7.9 Hz, IH), 733-737 (m, 4H). 738-7.43 (m, 2H), 7.51 (d, J = 8.1 Hz, IH), 7.56-7.62 (m, 3H), 7.71 (tt, J = 1.3. 6.8 Hz, IH), 7.76-7.80 (m. 2H), 7.85 (dd, J = 1.8, 6.6 Hz. 2H), 7.99 (dt, J = 1.5, 7.7 Hz, 2H), 8.11 (dd, J = 1.8, 6.8 Hz, 2H), 8.25 (t, J = 1.8 Hz, IH), 10.29 (s, IH): IR (KBr) 3410, 3080, 2910, 2850, 1725, 1650, 1590, 1570, 1530, 1440, 1420. 1375, 1280, 1255, 1140, 1070, 1030, 750, and 700 cm^"1; mass spectrum [(+) FAB], m/z 1030 (M + Na)⁺; Anal. Calcd. for C₄₇H₄₃ClINO₁₄ ^• 0.5 H₂O: C, 55.50; H, 4.36; N. 1.38. Found: C, 55.13; H, 4.15; N, 138.

Example 74

4-Benzoyl-N-(5-F(4'.6^,-O-benzylidene-6-(4-iodo-benzoylVoxy-β-D-maltosyl^')-oxy- methyll-2-chloro-phenyl} -benzoic acid amide

The title compound was prepared as a white solid (0.378 g, 59%) from 4- benzoyl-N-{5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- benzamide using -iodobenzoyl chloride and a procedure similar to Example 2, mp >151 °C (decomp.); Η ΝMR (DMSO-J₆) δ 3.18-3.24 (m. IH), 332-3.42 (m, 2H), 3.49-3.63 (m. 4H). 3.71 (td, J = 4.8, 9.9 Hz, IH), 3.78 (ddd, J = 1.1, 4.6, 9.2 Hz, IH), 4.04 (dd, J = 4.8. 9.9 Hz, IH), 435 (dd, J = 4.8, 12.1 Hz, IH), 4.42 (d, J = 7.7 Hz, IH), 4.59 (d. J = 10.8 Hz, IH), 4.72 (ABq, J = 12.7 Hz, Δδ = 0.13, 2H), 5.13 (d, J = 4.0 Hz, IH). 5.34 (d, J = 5.3 Hz, IH), 5.39 (d, J = 5.1 Hz, IH), 5.52 (s, IH). 5.59 (d, J = 2.4 Hz. IH). 5.82 (d, J = 5.9 Hz, IH), 731-737 (m, 4H), 738-7.42 (m, 2H), 7.51 (d, J = 8.3 Hz, IH), 7.56-7.61 (m, 3H), 7.69-7.75 (m, 3H), 7.76-7.79 (m, 2H), 7.85 (d, J = 8.6 Hz, 2H), 7.89 (d, J = 8.6 Hz, 2H), 8.12 (d, J = 8.6 Hz, 2H), 1030 (s, IH); IR (KBr) 3420. 3080, 2890, 2840, 1725, 1655, 1590, 1530, 1440, 1420, 1380, 1365, 1325, 1280. 1160. 1120, 1070, 1030, 1005, 750, and 700 cm^"1; mass spectrum [(+) FAB], m/z 1030/1032 (M + Νa)⁺; Anal. Calcd. for C₄₇H₄₃ClINO_]4: C, 55.01; H, 4.42; N, 136. Found: C. 54.99; H, 4.38: N, 1.40. Example 75

(l-(5-[(4'.6'-O-Benzylidene-β-D-maltosyl)-oxy-methvn-2-chloro-phenyl- carbamoyl}ethyl)-carbamic acid 9H-fluoren-9ylmethyl ester step 1 N-{2-Chloro-5-[(2,2',3,3',4',6,6')-hepta-O-acetyl-β-D-maItosyl-oxymethyl]- phenyl}-(9H-fluoren-9-ylmethoxycarbonyl)-L-alaninamide

The title compound was prepared as a white foam (2.50 g, 36%) from 2- chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenylamine using N-(9H- fluoren-9-ylmethyoxycarbonylamino)-L-alanine and a procedure similar to step 1 of Example 65, mp >96 °C (decomp.); ^!Η ΝMR (DMSO-J₆) δ 133 (dd, J = 7.2 Hz, 3H), 1.918 (s, 3H), 1.919 (s, 3H), 1.94 (s, 3H), 1.966 (s, 3H), 1.97 (s, 3H), 2.01 (s, 3H), 2.07 (s, 3H), 3.91-4.02 (m, 4H), 4.12-4.24 (m, 3H), 4.24-434 (m, 3H), 434-4.40 (m, IH), 4.53 (d, J = 12.7 Hz, IH), 4.68-4.75 (m, 2H), 4.84 (d, J = 4.0 Hz, IH), 4.86 (d, J = 2.6 Hz, IH), 4.97 (t, J = 9.7 Hz, IH), 5.21 (t, J = 9.7 Hz, IH), 5.27 (d, J = 3.7 Hz, IH), 5.27-532 (m, IH), 7.08 (dd, J = 1.8, 8.1 Hz, IH), 7.32 (t, J = 7.2 Hz, 2H), 7.40 (t, J = 7.5 Hz, 2H), 7.47 (d, J = 8.1 Hz, IH), 7.69-7.78 (m, 4H), 7.88 (d, J = 7.5 Hz, 2H), 9.42 (s, IH); IR (KBr) 3360, 3010, 2950, 1755, 1590, 1535, 1440, 1420, 1370, 1230. 1050, and 755 cm^"1; mass spectrum [(+) ESI], m/z 1069.2 (M + H)⁺, 1086.2/1088.2 (M + ΝH₄)⁺, Anal. Calcd. for C₅₁H₅₇ClN₂O₂₁ • 3.5 H₂O: C, 54.09; H, 5.70: N. 2.47. Found: C, 53.67; H, 5.11 ; N, 2.34.

step 2

N-[2-Chloro-5-(β-D-maltosyl-oxymethyl)-phenyI]-(9H-fluoren-9- ylmethoxycarbonyl)-L-alaninamide To a stirred solution of KCΝ (0.032 g, 0.491 mmol) in MeOH (10 mL) at 0°C was added (l-{5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl- carbamoyl}ethyl)-carbamic acid 9H-fluoren-9ylmethyl ester (1.05 g, 0.982 mmol). The reaction mixture was stirred at this temperature for 24 h and then concentrated. The resulting residue was diluted with TΗF:sat. aq. ΝaHCO₃ (1:1. 20 mL) followed by addition of Fmoc-Cl (0.170 g, 0.658 mmol). This solution was stirred at rt for 0.5 h, and the resulting mixture filtered to remove the solid that formed. The filtrate was concentrated, and the residue was purified by flash chromatgraphy (80:2:1 to 4:2:1 EtOAc:EtOH: H₂O) to afford the product (0.600 g, 79%) which was used in the next step without further purification.

step 3 (l-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl- carbamoyl}ethyl)-carbamic acid 9H-fluoren-9ylmethyl ester

The title compound was prepared as a off-white solid (0.295 g, 41%) from N- [2-chloro-5-(β-D-maltosyl-oxymethyl)-phenyl]-(9H-fluoren-9-ylmethoxycarbonyl)-L- alaninamide using a procedure similar to Example 24, mp >190 °C (decomp.); ^!Η ΝMR (DMSO-J₆) δ 1.34 (d, J = 7.0 Hz, 3H), 3.06-3.14 (m, IH), 3.28-3.42 (m, 3H), 3.41 (td, J = 2.2, 9.2 Hz, IH), 3.51-3.60 (m, 2H), 3.64-3.76 (m, 4H), 4.11 (dd, J = 2.4, 7.7 Hz, IH), 4.22 (t, J = 6.6 Hz, IH), 4.26-435 (m, 4H), 4.67 (t, J = 5.7 Hz, IH), 4.69 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.26 (d, J = 4.8 Hz, IH), 5.31 (d, J = 5.1 Hz, IH), 5.52 (d, J = 2.6 Hz, IH), 5.57 (s, IH), 5.64 (d, J = 6.2 Hz, IH), 7.24 (d, J = 7.7 Hz, IH), 7.28-7.48 (m, 10H), 7.69-7.79 (m, 4H), 7.88 (d, J = 7.5 Hz, 2H), 9.46 (s, IH); IR (KBr) 3390, 3080, 2920, 2870, 2350, 1705, 1590, 1525, 1445, 1420, 1375, 1340, 1310, 1255, 1140, 1070, 1030, and 740 cm^"1; mass spectrum [(+) ESI], m/z 880 (M + ΝH₄)⁺; Anal. Calcd. for C₄₄H₄₇ClN₂O₁₄ • 1.0 H₂O: C, 59.96; H, 5.60; N, 3.18, Found: C, 60.23; H, 5.53; N, 3.45.

Example 76

N-(9H-Fluoren-9ylmethoxycarbonyl)-N'-{5-r(6-O-benzoyl-4',6'-O-benzylidene-β-D- maltosyl)-oxy-methyll-2-chloro-phenyl}-L-alaninamide

The title compound was prepared as a white solid (0.083 g, 62%) from (l-{5- [(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenylcarbamoyl}ethyl)- carbamic acid 9H-fluoren-9ylmethyl ester using a procedure similar to Example 2, mp 224-226 °C; Η ΝMR (DMSO-J₆) δ 132 (d, J = 7.2 Ηz, 3Η), 3.19 (t, J = 8.3 Hz, IH), 3.26-337 (m, 4H), 3.48-3.63 (m, 3H), 3.70 (dd, J = 5.1, 9.9 Hz, IH), 3.73-3.78 (m, IH), 4.05 (dd, J = 4.8, 9.9 Hz, IH), 4.21 (t, J = 6.8 Hz, IH), 4.24-438 (m, 3H), 4.40 (d, J = 7.7 Hz, IH), 4.56-4.63 (m, IH), 4.65 (ABq, J = 12.5 Hz, Δδ = 0.15, 2H), 5.13 (d, J = 3.7 Hz, IH), 5.27-5.41 (bs, 2H), 5.52 (s, IH), 5.54-5.61 (bs, IH), 5.75- 5.84 (bs, IH), 7.21 (d, J = 8.6 Hz, IH), 7.28-737 (m, 5H), 737-7.45 (m, 5H), 7.51 (t, J = 7.9 Hz, 2H). 7.63 (t, J = 7.5 Hz, IH), 7.68-7.77 (m, 4H), 7.88 (d, J = 7.7 Hz, 2H), 7.98 (d, J = 7.2 Hz, 2H), 9.43 (s, IH): IR (KBr) 3400, 3080, 2920, 2850, 1725, 1590, 1530, 1440, 1420. 1375, 1320, 1275, 1070, 1025, 745, and 715 cm^'1; mass spectrum [(+) FAB], m/z 989/991 (M + Na)⁺; Anal. Calcd. for C₅₁H₅₁ClN₂O₁₅ • 1.0 H₂O: C, 62.16; H, 5.42: N, 2.84, Found: C, 61.99; H, 5.23; N, 3.06.

Example 77

N'-(5-r(6-( -benzoyl-4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyll-2-chloro- phenyl }-L-alaninamide To a stirred solution of 20% piperidine (2.00 mL, 20.2 mmol) in DMF (10 mL) at rt was added N-(9H-fluoren-9ylmethoxycarbonyl)-N'-{5-[(6-O-benzoyl-4',6'- O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-L-alaninamide (0.300 g, 0.256 mmol). After 2 h at this temperature, the solution was concentrated on the high vacuum. The residue was purified by preparatory plate chromatography (10:2:1 EtOAc:EtOΗ:Η₂O) to afford the product (0.018 g, 78%) as an off-white solid, mp 131-133 °C; Η ΝMR (DMSO-J₆) δ 1.26 (d, J = 7.0 Hz, 3H), 3.15-3.22 (m, IH), 3.26-3.42 (m, 5H). 3.47-3.64 (m, 4H), 3.70 (dd, J = 4.6, 9.7 Hz, IH), 3.73-3.79 (m, IH), 4.05 (dd, J = 4.8, 9.9 Hz, IH), 4.35 (dd, J = 5.1, 12.1 Hz, IH), 4.40 (d, J = 7.7 Hz, IH), 4.60 (d, J = 12.7 Hz, IH), 4.66 (ABq, J = 12.3 Hz, Δδ = 0.14, 2H), 5.13 (d, J = 3.7 Hz, IH), 534 (dd, J = 0.9, 5.3 Hz, 2H), 5.52 (s, IH), 5.57 (d, J = 2.9 Hz, IH), 5.80 (d, J = 6.2 Hz. IH), 7.15 (dd, J = 2.0, 8.1 Hz, IH), 733-738 (m, 3H), 738-7.45 (m, 3H), 7.53 (t, J = 1.1 Hz, 2H), 7.63-7.68 (m, 2H), 7.98 (d, J = 1.3 Hz, IH), 8.00 (s, IH), 8.20 (s. IH): IR (KBr) 3410, 2920. 2850, 1720, 1625, 1590, 1525, 1445, 1420, 1375, 1275, 1070. 1025, and 715 cm^"1; mass spectrum [(+) FAB], m/z 745 (M + H)⁺, 767 (M + Νa)⁺: Anal. Calcd. for C₃₆H₄₁ClN₂O₁₃ • 2.0 H₂O: C, 55.35; H, 5.81; N, 3.59, Found: C, 55.63; H, 5.77; N, 3.23. Example 78

/v^"-{5-[(4'.6'-O-Benzylidene-β-D-maltosyl)-oxymethyll-2-chloro-phenyl)-N-methyl- acetamide step 1 N-[5-(2,2',3,3',4',6,6'-Hepta-O-acetyl-β-D-maltosyl)-oxy-methyl-2-chloro- phenyl]-N-methyl-acetamide

To a stirred solution of N-[2-chloro-5-(hepta-O-acetyl-β-D-maltosyl- oxymethyl)-phenyl]-acetamide (0.100 g, 0.122 mmol) in THF (2.0 mL) at -78 °C was added ΝaHMSA (0.183 mL, 1.0 M in THF). After 0.5 h at this temperature, methyl iodide (0.0152 mL, 0.244 mmol) was added, and the reaction was warmed to rt for 2 h. At this point, the reaction was diluted with EtOAc (100 mL), washed with 1 Ν HC1 (10 mL), sat. aq. ΝaHCO₃ (10 mL), and brine (10 mL), and then dried (MgSO₄). After concentration, the resulting oilly residue was purified by preparatory plate chromatography using 50:50 EtOAc :petroleum ether as the eluant to afford the product (0.0408 g. 40%) as a white foam, mp >252 °C (decomp.); Η NMR (CDC1₃) δ 1.81 (s, 3H). 2.00 (s, 3H), 2.01 (s, 6H), 2.02 (s, 3H), 2.04 (s, 3H), 2.10 (s, 3H), 2.15 (s, 3H), 3.19 (d. J = 2.9 Hz, 3H), 3.67-3.72 (m, IH), 3.94-3.99 (m, IH), 4.03 (t, J = 9.4 Hz, IH), 4.07 (d, J = 2.2 Hz, IH), 4.21-4.28 (m, 2H), 4.54 (dd, J = 2.9, 12.3 Hz, IH), 4.59 (d. J = 11.6 Hz, IH), 4.64 (d, J = 7.5 Hz, IH), 4.83-4.93 (m, 3H). 5.06 (t, J = 10.1 Hz, IH). 5.26 (td, J = 3.3, 9.0 Hz, IH), 5.36 (t, J = 9.7 Hz, IH), 5.42 (d, J =

4.0 Hz, lH), 7.20 (d, J = 2.0 Hz, IH), 7.24 (dt, J = 2.0, 8.1 Hz, IH), 7.47 (dd, J = 1.1,

8.1 Hz, IH): IR (KBr) 3470, 2950, 1755, 1620, 1480, 1420, 1380, 1230, 1140, and 1045 cm^"1; mass spectrum [(+) ESI], m/z 832 (M + H)⁺, Anal. Calcd. for C₃₆H₄₍.ClNO₁₉ • 1.5 FLO: C. 5032; H, 5.75; N, 1.63, Found: C, 50.17; H, 5.38; N, 1.67.

step 2

N-{2-Chloro-5-[(β-D-maltosyl)-oxymethyl]-phenyl}-N-methyl-acetamide

The title compound was prepared as a white solid (0.475 g, 99%) from N-[5-

(2,2',3,3',4^'.6.6^'-hepta-O-acetyl-β-D-maltosyl)-oxy-methyl-2-chloro-phenyl]-N- methyl-acetamide using a procedure similar to step 4 of Example 1, mp >96 °C

(decomp.): 'H ΝMR (DMSO-J₆) δ 1.67 (s, 3H), 3.05 (d, J = 1.1 Hz, 3H), 3.06-3.14

(m, IH), 3.18-3.28 (m, 2H), 330-338 (m, 2H), 338-3.49 (m, 4H), 3.53-3.63 (m, 2H), 3.68-3.75 (m, IH), 4.28 (dd, J = 7.9, 9.7 Hz, IH), 4.48-4.53 (m, 2H), 4.62 (dd, J = 3.3, 13.2 Hz, IH), 4.84 (d, J = 13.0 Hz, IH), 4.89 (dd, J = 5.5, 7.7 Hz, 2H), 5.01 (d, J = 3.7 Hz, IH), 5.30 (dd, J = 4.8, 7.7 Hz, IH), 5.42 (dd, J = 2.4, 6.2 Hz, IH), 5.52 (d, J = 3.1 Hz, IH), 7.43 (dt, J = 1.8, 8.1 Hz, IH), 7.57 (s, IH), 7.60 (d, J = 8.3 Hz, IH); IR (KBr) 3400, 3000, 2910, 1645, 1580, 1480, 1420, 1385, 1320, 1255, 1195, 1145, 1120, 1075, 1035, and 755 cm^"1; mass spectrum [(+) FAB], m/z 538 (M + H)⁺, 560 (M + Na)⁺, Anal. Calcd. for C₂₂H₃₂ClNO₁₂ • 1.0 H.O: C, 47.53; H, 6.16; N, 2.52, Found: C, 47.18; H, 6.01; N, 2.38.

step 3

N-{5-[(4%6'-0-Benzylidene-β-D-maltosyl)-oxymethyl]-2-chloro-phenyl}-N- methy 1- acetamide

The title compound was prepared as a white foam (0.315 g, 63%) from N-{2- chloro-5-[(β-D-maltosyl)-oxymethyl]-phenyl}-N-methyl-acetamide using a procedure similar to Example 24, mp >125 °C (decomp.); Η ΝMR (DMSO-J₆) δ 1.68 (d, J = 1.3 Hz, 3H), 3.06 (d, J = 1.3 Hz, 3H), 3.09-3.16 (m, IH), 3.28-3.42 (m, 4H), 3.42- 3.50 (m, IH), 3.50-3.60 (m, 2H), 3.64-3.75 (m, 3H), 4.09-4.14 (m, IH), 4.30 (dd, J = 7.7, 10.3 Hz, IH), 4.60-4.69 (m, 2H), 4.85 (d, J = 13.2 Hz, IH), 5.14 (d, J = 4.0 Hz, IH), 530 (d, J = 5.1 Hz, IH), 533 (dd, J = 5.1, 7.9 Hz, IH), 5.53 (d, J = 3.3 Hz, IH), 5.57 (s, IH), 5.63 (dd, J = 2.9, 6.8 Hz, IH), 734-738 (m, 3H), 7.41-7.46 (m, 3H), 7.58 (s, IH), 7.60 (d, J = 8.3 Hz, IH); IR (KBr) 3410, 2920, 2860, 1640, 1610, 1580, 1480, 1440, 1410, 1380, 1320, 1185, 1150, 1070, 1030, 955, and 755 cm^"1; mass spectrum [(-) FAB], m/z 624 (M - H) ; Anal. Calcd. for C₂₉H₃₆ClΝO₁₂ ^• 2.5 H₂O: C, 51.90; H, 6.16; N, 2.09, Found: C, 51.92; H, 5.48; N, 2.09.

Example 79

N-(5-r(6-O-Benzoyl-4'.6'-O-benzylidene-β-D-maltosyl)-oxymethyll-2-chloro- phenyl l-N-methyl-acetamide

The title compound was prepared as a white solid (0.087 g, 37%) from N-{5- [(4^',6'-O-benzylidene-β-D-maltosyl)-oxymethyl]-2-chloro-phenyl}-A^/-methyl- acetamide using a procedure similar to Example 2, mp 180-183 °C; 'H ΝMR (DMSO-J₆) δ 1.64 (d, J = 4.0 Hz, 3H), 3.02 (s, 3H), 3.17-3.25 (m, IH), 3.35 (d. J = 9.4 Hz, IH), 337-3.43 (m, IH), 3.49-3.65 (m, 4H), 3.70 (dd, J = 4.6, 9.9 Hz, IH), 3.73-3.79 (m, IH), 4.04 (d, J = 5.1, 9.9 Hz, IH), 4.34 (ddd, J = 2.4, 4.8, 12.1 Hz, IH), 4.41 (dd, J = 7.9, 10.1 Hz, IH), 4.58 (d, J = 11.4 Hz, IH), 4.72 (ABq, J = 12.5 Hz, Δδ = 0.12, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.34 (d, J = 4.8 Hz, IH), 5.43 (dd, J = 5.3, 7.2 Hz, IH), 5.52 (s, IH), 5.59 (d, J = 2.6 Hz, IH), 5.79 (dd, J = 2.0, 5.7 Hz, IH), 733-737 (m, 3H), 738-7.43 (m, 3H), 7.50-7.55 (m, 3H), 7.56 (d, J = 8.3 Hz, IH), 7.63-7.68 (m, IH), 7.96-8.00 (m, 2H); IR (KBr) 3495, 3400, 3090. 2930, 2890, 1730, 1645, 1600, 1575, 1480, 1445, 1420, 1385, 1360, 1320, 1270, 1200, 1160, 1110, 1070, 1050, 1020, 985, and 715 cm^"1; mass spectrum [(+) FAB], m/z 730 (M + H)⁺, 752 (M + Na)⁺; Anal. Calcd. for C₃₆H₄₀C1NO₁₃ • HN): C, 59.22; H, 5.52; N, 1.92, Found: C, 59.02; H, 5.50; N, 1.79.

Example 80

N-{5-r(4'.6'-O-Benzylidene-β-D-maltosyl)-oxy-methyll-2-chloro-phenyl)-carbamic acid methyl ester step 1

N-{5-[(2,2',3,3',4',6,6'-Hepta-O-acetyl-β-D-maltosyl)-oxymethyl]-2-chIoro- phenyl}-carbamic acid methyl ester

To a stirred solution of 2-chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)- phenylamine (1.40 g, 1.80 mmol) in THF (18 mL) at 0 °C was added ΝaH (0.108 g, 2.70 mmol). After 10 min. at this temperature, methyl chloroformate (0.167 mL, 2.16 mmol) was added, and then the reaction was warmed to rt for 3 h. At this point, the reaction was concentrated, and the residue was diluted with EtOAc (300 mL). This solution was washed with IN HC1 (30 mL), sat. aq. ΝaHCO₃ (30mL), and brine (30 mL) and then dried (MgSO₄). After concentration, the resulting oilly residue was purified by flash chromatography (2:98 to 10:90 acetone:CHCl₃ gradient) to afford the product (1.33 g, 88%) as a white foam, mp >79 °C (decomp.); Η NMR (DMSO- d₆) δ 1.93 (s, 3H), 1.94 (s, 6H), 1.970 (s, 3H), 1.973 (s, 3H), 2.01 (s. 3H), 2.08 (s, 3H), 3.64 (s, 3H), 3.91-4.03 (m, 4H), 4.12-4.23 (m, 2H), 4.38 (dd, J = 1.8, 11.9 Hz, IH), 4.54 (d, J = 12.7 Hz, IH), 4.69-4.75 (m, 2H). 4.83-4.88 (m, 2H), 4.97 (t, J = 9.7 Hz, IH), 5.21 (dd, I = 9.7, 10.3 Hz, IH), 5.27 (d, J = 3.7 Hz, IH), 5.30 (dd, J = 8.6, 9.2 Hz, IH), 7.07 (dd, J = 2.0, 8.3 Hz, IH), 7.44 (d. J = 8.1 Hz, IH), 7.48 (d, J = 1.8 Hz, IH), 9.08 (s, IH); IR (KBr) 3420, 2950, 1755, 1590. 1530, 1450, 1420, 1375, 1230, 1130, and 1040 cm^"1; mass spectrum [(+) FAB], m/z 834 (M + H)⁺, 856 (M + Na)⁺, Anal. Calcd. for C₃₅H₄₄C1NO₂₀ • 0.5 H₂O: C, 49.86; H, 5.38; N, 1.66. Found: C, 49.68; H, 5.14; N, 1.58.

step 2

{2-Chloro-5-[(β-D-maItosyl)-oxy-methyl]-phenyl}-carbamic acid methyl ester

The title compound was prepared as a white foam (0.753 g, 99%) from N-{5- [(2,2',3,3',4',6,6'-hepta-O-acetyl-β-D-maltosyl)-oxymethyl]-2-chloro-phenyl}- carbamic acid methyl ester using a procedure similar to step 2 of Example 63, mp >109 °C (decomp.); Η ΝMR (OMSO-d₆) δ 3.01-3.11 (m, 2H), 3.19-3.27 (m, 2H), 3.28-338 (m, 2H), 338-3.50 (m, 3H), 3.52-3.64 (m, 2H), 3.64 (s, 3H), 3.72 (d, J = 11.2 Hz, IH). 4.28 (d, J = 7.9 Hz, IH), 4.44-4.57 (m, 2H), 4.67 (ABq, J = 12.5 Hz, Δδ = 0.22, 2H), 4.83-4.96 (bs, 2H), 5.01 (d, J = 4.0 Hz, IH), 5.16-532 (bs, IH), 5.34- 5.58 (bs, 2H), 7.21 (dd, J = 2.0, 8.1 Hz, IH), 7.43 (d, J = 8.1 Hz, IH), 7.53 (d, J = 1.8 Hz, IH), 9.07 (s, IH); IR (KBr) 3420, 2920, 1725, 1590. 1530, 1450, 1425, 1370, 1310, 1255, 1230. 1140, 1070, and 1030 cm^"1; mass spectrum [(+) FAB], m/z 562/564 (M + Νa)⁺, Anal. Calcd. for C₂₁H₃₀C1NO₁₃ • 0.5 H₂O: C. 45.95; H, 5.69; N, 2.55, Found: C, 45.81; H, 5.82; N, 239.

step 3

N-{5-[(4%6'-0-BenzyIidene-β-D-maltosyl)-oxy-methyI]-2-chloro-phenyl}- carbamic acid methyl ester

The title compound was prepared as a white solid (0.552 g, 71%) from {2- chloro-5- [(β-D-maltosyl)-oxy-methyl] -phenyl} -carbamic acid methyl ester using a procedure similar to Example 24, mp 142-145 °C; Η ΝMR (DMSO-J₆) δ 3.06-3.13 (m, IH), 3.28-3.41 (m, 4H), 3.46 (td, J = 2.4, 8.8 Hz, IH). 3.50-3.61 (m, 2H), 3.65 (s, 3H), 3.65-3.75 (m. 3H), 4.11 (dd, J = 3.1. 8.1 Hz, IH). 430 (d, J = 7.7 Hz, IH), 4.64- 4.69 (m, IH), 4.68 (ABq. J = 12.5 Hz, Δδ = 0.22, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.26 (d, J = 5.1 Hz. IH). 5.30 (d, J = 4.8 Hz, IH), 5.51 (d, J = 2.9 Hz, IH), 5.57 (s, IH), 5.63 (d, J = 6.4 Hz. IH), 7.22 (dd, J = 2.0, 8.1 Hz, IH), 734-738 (m, 3H), 7.41-7.46 (m, 3H), 7.54 (d. J = 1.8 Hz, IH), 9.07 (s, IH); IR (KBr) 3530, 3410, 2920, 2850, 1730, 1590, 1535, 1450, 1420, 1375, 1310, 1250, 1230, 1145, 1075, 1030, and 1000 cm^"1; mass spectrum [(+) FNB], m/z 650/652 (M + Νa)⁺; Anal. Calcd. for C₂₈H₃₄ClNO_I3 • 0.5 H₂O: C, 52.79; H, 5.54; N, 2.20, Found: C, 52.85; H, 5.77; N, 2.11.

Example 81

N-{5-r(6-O-Benzoyl-4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl} -carbamic acid methyl ester

The title compound was prepared as a white solid (0.407 g, 71%) from N-{5- [(4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-carbamic acid methyl ester using a procedure similar to Example 2, mp >103 °C (decomp.); ^]H ΝMR (DMSO-J₆) δ 3.16-3.22 (m, IH), 3.27-3.42 (m, 2H), 3.48-3.63 (m, 4H), 3.63 (s, 3H), 3.70 (dd, J = 5.1, 10.1 Hz, IH), 3.73-3.79 (m, IH), 4.05 (dd, J = 4.8, 9.9 Hz, IH), 4.35 (dd. J = 5.1, 12.1 Hz, IH), 4.40 (d, J = 7.7 Hz, IH), 4.58-4.63 (m, IH), 4.66 (ABq. J = 12.5 Hz, Δδ = 0.14, 2H), 5.14 (d, J = 4.0 Hz, IH), 535 (dd, J = 5.3, 83 Hz, 2H), 5.52 (s, IH), 5.57 (d, J = 3.1 Hz, IH), 5.80 (d, J = 6.2 Hz, IH), 7.19 (dd, J = 2.0, 8.1 Hz, IH), 733-7.43 (m. 6H), 7.50-7.55 (m, 3H), 7.63-7.68 (m, IH), 8.00 (dd, J = 1.1. 8.1 Hz, 2H), 9.05 (s. IH); IR (KBr) 3420, 3080, 2920, 2860, 1725, 1640, 1590. 1530. 1445, 1425, 1370, 1320, 1275, 1220, 1140, 1070, 1025, and 720 cm^"1; mass spectrum [(+) ESI], m/z 732/734 (M + H)⁺, 754/756 (M + Νa)⁺; Anal. Calcd. for C₃₅H ₈ClNO₁₄: C, 57.42; H, 5.23: N, 1.91, Found: C, 57.17; H, 5.26; N, 1.81.

Example 82

N-(5-r(6-( -(3-Benzyl-l-oxo-propyl)-4'.6'-O-benzylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyll-carbamic acid methyl ester

The title compound was prepared as a white solid (0.152 g, 42%) from N-{5- [(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-carbamic acid methyl ester using hydrocinnamoyl chloride and a procedure similar to Example 2, mp >93 °C (decomp.): Η ΝMR (DMSO-J₆) δ 2.66 (t, J = 7.7 Hz, 2H), 2.84 (t, J = 7.7 Hz. 2H). 3.08-3.16 (m, IH), 3.27-3.49 (m, 4H), 3.53-3.60 (m, 2H), 3.62-3.72 (m, 2H). 3.63 (s. 3H), 4.05-4.13 (m. 2H), 431-437 (m, 2H), 4.63 (ABq, J = 12.5 Hz, Δδ = 0.15. 2H). 5.09 (d, J = 3.7 Hz, IH), 5.34 (t, J = 5.5 Hz, 2H), 5.55-5.58 (m, 2H), 5.82 (d, J = 6.2 Hz, IH), 7.12-7.18 (m, IH), 7.18-7.27 (m, 5H), 734-739 (m, 3H), 7.41-7.46 (m, 3H), 7.54 (d, J = 1.8 Hz, IH), 9.07 (s, IH); IR (KBr) 3410, 3080, 3030, 2920, 2850, 1735, 1590, 1530, 1450, 1425, 1375, 1310, 1250, 1220, 1145, 1070, 1030, 750, and 700 cm^"1; mass spectrum [(-) ESI], m/z 758 (M - H)^"; Anal. Calcd. for C₃₇H₄₂ClNO₁₄ • 1.0 H₂O: C, 57.11; H, 5.70; N, 1.80, Found: C, 57.30; H, 5.52; N, 1.77.

Example 83

N-(5-r(4'.6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl)- methanesulfonamide step 1

N-{5-[(2,2',3,3',4',6,6'-Hepta-0-acetyl-β-D-maltosyl)-oxy-methyl]-2-chloro- phenylj-methanesulfonamide

To a stirred solution of ΝaH (0.0467 g, 1.17 mmol) and CH₂C1₂ (10 mL) at rt was added 2-chloro-5-(hepta-O-acetyl-β-D-maltosyl-oxymethyl)-phenylamine (0.755 mg, 0.973 mmol). After 10 min., MsCl (0.0906 mL, 1.17 mmol) was added to this solution dropwise, and the reaction was stirred at rt for 18 h. Another 2.4 eq. MsCl added and continued stirring at rt for 144 h. Since reaction was only about 25% complete, it was refluxed for 24 h. Then another 2.4 eq. MsCl added and continued refluxing for 120 h. The resulting solution was concentrated and then diluted with EtOAc (200 mL). This layer was washed with IN HC1 (20 mL), sat. ΝaHCO₃ (20 mL), and brine (20 mL) and then dried (MgSO₄). After concentration, the oilly residue was purified by flash chromatography (10:90 to 60:40 acetone :hexane gradient) to afford the product (0.423 g, 51%) as a white foam, mp >73 °C (decomp.); Η NMR (DMSO-J₆) δ 1.93 (d, J = 1.8 Hz, 3H), 1.94 (d, J = 1.8 Hz, 3H), 1.95 (d, J = 1.5 Hz, 3H), 1.97 (d, J = 0.9 Hz, 6H), 2.01 (d, J = 1.5 Hz, 3H), 2.08 (d, J = 1.5 Hz, 3H), 3.02 (d, J = 1.3 Hz, 3H), 3.90-4.04 (m, 4H), 4.11-4.23 (m, 2H), 4.38 (d, J = 11.6 Hz, IH), 4.56 (d, J = 12.7 Hz, IH), 4.68-4.77 (m, 2H), 4.82-4.89 (m, 2H). 4.97 (t, J = 9.7 Hz, IH), 5.20 (t, J = 9.4 Hz, IH), 5.27 (d, J = 3.1 Hz, IH), 5.27- 5.34 (m, IH), 7.15 (d, J = 8.3 Hz, IH), 7.35 (s, IH), 7.50 (dd, J = 1.5, 8.3 Hz, IH), 9.47 (s, IH); IR (KBr) 3480, 3260, 3010, 2950, 1755, 1590, 1495, 1420, 1375, 1355, 1230.1140, 1045, 975, 900, and 755 cm^"1; mass spectrum [(+) FAB], m/z 854 (M + H)⁺, 876 (M + Na)⁺, Anal. Calcd. for C₃₄H₄₄C1NO₂₀S • 1.25 H₂O: C, 46.58; H, 5.35; N, 1.60, Found: C, 46.22; H, 4.93; N, 1.49.

step 2 N-{5-[(β-D-MaItosyl)-oxy-methyl]-2-chloro-phenyl}-methanesulfonamide sodium salt

The title compound was prepared as a white solid (0310 g, 71%) from N-{5- [(2,2'3,3',4',6,6'-hepta-O-acetyl-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl }- methanesulfonamide using 1.3 eq. 25 weight % ΝaOMe in MeOH (because of sulfonamide acidity) and a procedure similar to step 4 of Example 1, mp >189 °C (decomp.); Η ΝMR (DMSO-J₆) δ 2.54 (s, 3H), 3.05 (t, J = 8.1 Hz, 2H), 3.16 (s, IH), 3.18-3.24 (m, 2H), 3.27-3.42 (m, 2H), 3.42-3.51 (m, 2H), 3.53-3.63 (m, 2H), 3.72 (d, J = 11.2 Hz, IH), 4.24 (d, J = 7.7 Hz, IH), 4.44-4.54 (bs, IH), 4.50 (ABq, J = 11.6 Hz, Δδ = 0.24, 2H), 4.54-4.60 (bs, IH), 4.80-4.93 (bs, 2H), 5.01 (d, J = 3.7 Hz, IH), 5.09-5.18 (bs, IH), 5.27-5.55 (bs, 2H), 6.47 (dd, J = 2.0, 7.9 Hz, IH), 7.05 (d, J = 7.9 Hz, IH), 7.19 (d, J = 2.0 Hz, IH); IR (KBr) 3410, 2920, 1630, 1590, 1475, 1420, 1375, 1310, 1215, 1140, 1110, 1075, and 1020 cm^"1; mass spectrum [(+) FAB], m/z 582 (M + Νa)⁺, Anal. Calcd. for C₂₀H₂₉C1NO₁₃S • Na - 3.5 H₂O: C, 37.24; H, 5.63; N, 2.17, Found: C, 37.00; H, 5.10; N, 2.13.

step 3

N-{5-[(4',6'-<?-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- methanesulfonamide

The title compound was prepared as a white solid (0.198 g, 55%) from N-{5- [(β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-methanesulfonamide sodium salt using a procedure similar to Example 24, mp >93 °C (decomp.); Η ΝMR (DMSO- d₆) δ 3.05 (s, 3H), 3.07-3.14 (m, IH), 32.6-3.42 (m, 4H), 3.42-3.48 (m, IH), 3.50- 3.59 (m, 2H), 3.63-3.75 (m, 3H), 4.11 (d, J = 5.4 Hz, IH). 4.30 (d, J = 1.1 Hz, IH), 4.66 (t, J = 6.6 Hz, IH), 4.71 (ABq, J = 12.7 Hz, Δδ = 0.19, 2H), 5.14 (d, J = 3.7 Hz, IH), 5.29 (t, J = 4.2 Hz, 2H), 5.51 (d, J = 3.1 Hz, IH), 5.57 (s. IH), 5.63 (d. J = 6.6 Hz, IH), 7.30 (dd, J = 1.8, 8.1 Hz, IH), 734-739 (m, 3H), 7.42-7.47 (m, 3H), 7.49 (d, J = 8.1 Hz, IH), 9.44 (s, IH); IR (KBr) 3410, 2910, 2840, 1630. 1590. 1495, 1445, 1385, 1345, 1235, 1160, 1070, 1025, 990, and 755 cm^"1; mass spectrum [(-) FAB], m/z 646 (M - H) ; Anal. Calcd. for C₂₇H₃₄ClNO_I3S • 2.0 H₂O: C, 47.40; H, 5.60; N, 2.05. Found: C, 47.09; H, 4.99; N, 1.98.

Example 84

N-l5-[(6-O-Benzoyl-4'.6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-cvano- phenyl} -acetamide step 1 α-Bromo-2-nitro-/?-toIunitrile A stirred mixture containing 4-methyl-2-nitrobenzonitrile (2.04 g, 12.6 mmol), Ν-bromosuccinimide (2.24 g, 12.6 mmol) and azobisisobutyronitrile (0.103 g, 0.630 mmol) in CC1₄ (50 mL) was irradiated with a 300 watt flood light for 2 h.

The reaction was diluted with CH₂C1₂ (50 ml), filtered and concentrated. Purification by flash chromatography (35 and 40% ether/pet. ether gradient) gave 1.44 g (47%) of the title compound as a yellow oil. Η ΝMR (DMSO-J₆) δ 4.90 (s, 2 H), 8.05 (dd, J =

8.0, 1.5 Hz, 1 H), 8.18 (d, J = 8.0, 1 H), 8.52 (s, 1 H).

step 2 α-Hydroxy-2-nitro- ?-tolunitrile A stirred solution containing α-bromo-2-nitro-/?-tolunitrile (1.228 g, 5.095 mmol) and sodium formate (0.8664 g, 12.74 mmol) in ethano water (4:1, 25 mL) was refluxed for 2 h. The reaction was cooled to room temperature, diluted with 20% CH₂CL/EtOAc. washed with H2O (3x), dried (MgSO₄) and concentrated. Purification by flash chromatography (1,2 and 3% MeOH/CHCl₃ gradient) gave 0.695 g (77%) of the title compound as a white solid. Η ΝMR (DMSO-J₆) δ 4.71 (d, 2 H), 5.75 (t, 1 H), 7.89 (dd. J = 7.9 Hz, 1 H), 8.14 (d, J = 7.9 Hz, 1 H), 832 (s, 1 H).

step 3 5-[(Hepta-0-acetyl-β-D-maltosyl)-oxy-methyl]-2-cyano-l-nitrobenzene At ambient temperature, to a stirred solution of acetobromomaltose (2.39 g,

3.41 mmol). -hydroxy-2-nitro-/j-tolunitrile (0.789 g, 4.43 mmol) and HgBr₂ (1.60 g, 4.43 mmol) in freshly distilled CH₃CΝ (34 mL) was added in one portion Hg(CN)₂ (1.12 g, 4.43 g, mmol). After 16 h, brine (50 mL) was added and the mixture was extracted with 10% CH₂ClJEtONc. The combined organic extracts were washed with brine (3x), dried (MgSO4) and concentrated. Purification by flash chromatography (1,2 and 3% MeOH/CHCl₃ gradient) gave 1.941 g (71%) of the title compound as a foam. An analytical sample was obtained by cyrstallization from EtOAc/Hexane followed by recyrstallization from EtOH to give a colorless solid, mp 155 - 157 °C; ^!H ΝMR (DMSO-J₆) δ 1.93 (s, 3 H), 1.94 (s, 3 H), 1.97 (s, 3 H), 1.99 (s, 3 H), 2.01 (s, 3 H), 2.06 (s, 3 H), 3.93 - 4.01 (m, 4 H), 4.36 (d, j = 11.0 Hz, 1 H), 4.77 (dd, J = 9.6, 8.0 Hz, 1 H), 4.83 - 4.88 (m, 2 H), 4.93 - 5.00 (m, 3 H), 5.21 (dd, j = 10.3. 9.7 Hz, 1 H), 5.27 (d, j = 3.7 Hz, 1 H), 5.30 - 5.34 (m, 1 H), 7.84 (dd, j = 7.9. 1.5 Hz. 1 H), 8.18 (d, J = 7.9 Hz, 1 H), 8.27 (s, 1 H). IR (KBr) 3450, 2950, 2225, 1750. 1225 and 1050 cm^"1, mass spectrum [(+) FAB] m/z 797 (M + H)⁺. Anal. Calcd. for C₃₄H ₀Ν₂O₂₀: C, 51.26; H, 5.06; N, 3.52. Found: C, 51.06; H, 5.02; N, 3.31.

step 4

5-[(Hepta-<9-acetyl-β-maltosyl)-oxy-methyl]-2-cyano-phenylamine

A stirred mixture containing 5-[(hepta-O-acetyl-β-D-maltosyl)-oxy-methyl]-2- cyano- 1 -nitrobenzene (1.491 g, 1.872 mmol) iron powder (0.3658 g, 6.550 mmol) and glacial acetic acid (7 mL) in 2-propanol (7 mL) was heated at 75°C for 2 h. To the reaction was added activated charcoal and the hot solution was filtered through a sulka ploc pad. rinsing with EtOAc. The filtrate was washed with H₂O (3x), with sat. aq. NaHCO₃ (3x), dried (Na₂SO₄) and concentrated. Purification by flash chromatography (1,2 and 3% MeOH/CHCl₃ gradient) gave 1.04 g (72%) of the title compound. ^,H NMR (DMSO-J₆) δ 1.94 (s, 3 H), 1.95 (s, 3 H), 1.96 (s, 3 H), 1.98 (s, 6 H). 2.02 (s. 3 H), 2.09 (s, 3 H), 3.95 - 4.02 (m, 4 H), 4.14 - 4.22 (m, 2 H), 4.36 - 4.40 (m, 1 H). 4.56 (ABq, j = 13.2 Hz, Δδ = 0.09, 2 H), 4.72 (dd, J = 9.4, 8.2 Hz, 1 H), 4.98 (t. J = 9.7 Hz, 1 H), 5.19 - 5.37 (m, 3 H), 6.06 (s, 1 H), 6.49 (dd, j = 8.1, 1.0 Hz, 1 H), 6.66 (s. 1 H), 7.36 (d, J = 8.1 Hz, 1 H). mass spectrum [(+)FAB], m/z 767 (M + H)⁺. step 5 N-{5-[(Hepta-0-acetyl-β-D-maltosyl)-oxy-methyl]-2-cyano-phenyl}-acetamide

At ambient temperature, to a solution of 5-[(hepta-O-acetyl-β-maltosyl)-oxy- methyl]-2-cyano-phenylamine (0.280 g, 0.365 mmol) in CH₂C1₂ (3.6 mL) was added 60% NaH/mineral oil (14.6 mg, 0.365 mmol) and the reaction was stirred for 0.5 h. To the reaction was added acetyl chloride (31.3 μL, 0.438 mmol) and the reaction was stirred for 16 h. The reaction was quenched with sat. aq. NaHCO₃ (25 mL) and extracted with EtOAc. The combined organic extracts were dried (Na₂SO₄) and concentrated. Purification by flash chromatography (1,2 and 3% MeOH/CHCl₃ gradient) gave 0.249 g (84%) of the title compound. An analytical sample was obtained by cyrstallization from EtOAc/Hexane to give a colorless solid, mp 85 - 95°C; Η NMR (DMSO-J₆) δ 1.93 (s, 3 H), 1.94 (s, 3 H), 1.95 (s, 3 H), 1.97 (s, 6 H), 2.01 (s, 3 H), 2.07 (s, 3 H), 2.08 (s, 3 H), 3.92 - 4.01 (m, 4 H), 4.13 - 4.21 (m, 2 H), 437 (dd, J = 12.0, 2.1 Hz, 1 H), 4.73 (ABq, J = 13.8 Hz, Δδ = 0.07, 2 H), 4.73 (dd, J = 9.5, 8.0 Hz, 1 H), 4.84 - 4.89 (m, 2 H), 4.97 (t, J = 9.8 Hz, 1 H), 5.21 (dd, J = 10.3, 9.1 Hz, 1 H), 5.27 - 5.33 (m, 2 H), 7.21 (dd, J = 8.0, 1.4 Hz, 1 H), 7.48 (s, 1 H), 7.78 (d, J = 8.0 Hz, 1 H), 10.15 (s, 1 H). IR (KBr) 3400, 2950, 2225, 1750, 1240 and 1050 cm^'1, mass spectrum [(+) ESI], m/z 809 (M + H)⁺. Anal. Calcd. for C₃₆H₄₄N₂O₁₉: C, 53.47: H, 5.84; N, 3.46. Found: C, 53.55; H, 5.41; N, 3.40.

step 6 N-{5-[(β-D-Maltosyl)-oxy-methyI]-2-cyano-phenyl}-acetamide

At ambient temperature, to a stirred solution of N-{2-cyano-[5- (2,2',3,3',4',6,6'-hepta-O-acetyl-β-D-maltosyl)-oxy-methyl]-phenyl}-acetamide (2.31 g, 2.86 mmol) in MeOH (70 mL) was added in one portion potassium cyanide (92.9 mg. 1.43 mmol). After 3 h, the reactions was concentrated in vacuo. Purification by preparative HPLC (C18, 20% CH₃CΝ:H₂O) and gave 1.18 g (80%) of the title compound; Η NMR (DMSO-J₆) δ 2.08 (s, 3H), 3.03-3.17 (m, 2H), 3.20-3.49 (m, 7H). 3.50-3.64 (m, 2H), 3.71-3.75 (m, IH), 4.31 (d, J = 7.6 Hz, IH), 4.51-4.55 (m, 2H). 4.64-4.78 (m, 3H), 4.88-5.00 (m, 2H), 5.02 (d, J = 3.7 Hz, IH), 5.29-5.53 (m, 3H). 7.38 (dd, J = 8.1, 1.1 Hz, IH), 7.56 (s, IH), 7.77 (d, J = 8.1 Hz, IH), 7.80 (s, IH). step 7

N-{5-[(4',6'-O-Benzylidene-β-D-maItosyI)-oxy-methyI]-2-cyano-phenyl}- acetamide The title compound was prepared as a solid (0.682 g, 57%) from N-{5-[(β-D- maltosyl)-oxy-methyl]-2-cyano-phenyl}-acetamide using a procedure similar to Example 24; Η ΝMR (DMSO-J₆) δ 2.09 (s, 3H), 3.13-3.16 (m, 2H), 335-3.73 (m, 9H), 4.12-4.13 (m, IH), 4.34 (d, J = 7.8 Hz, IH), 4.65-4.70 (m, 2H), 4.91 (d, J = 13.6 Hz, IH), 5.15 (d, J = 3.8 Hz, IH), 5.32 (m, 2H), 5.55-5.58 (m, 3H), 736-7.47 (m, 6H), 7.56 (s, IH), 7.78 (d, J = 8.2 Hz, IH), 10.17 (s, IH).

step 8

N-{5-[(6-O-Benzoyl-4',6'-O-benzyIidene-β-D-maItosyl)-oxy-methyl]-2-cyano- phenyl}-acetamide The title compound was prepared as a white solid (0.173 g, 49%) from N-{5-

[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-cyano-phenyl}-acetamide using a procedure similar to Example 2, mp 122-129 °C; Η ΝMR (DMSO-J₆) δ 2.05 (s, 3H), 3.21 (t, IH), 334-3.41 (m, 2H), 3.53-3.64 (m, 4H), 3.71-3.77 (m, 2H), 4.03 (dd, IH), 434 (dd, J = 12.2, 4.9 Hz, IH), 4.42 (d, J = 7.7 Hz, IH), 4.59 (d, IH), 4.75 (ABq, J = 13.7 Hz, Δδ = 0.06, 2H), 5.14 (d, J = 4.0 Hz, IH), 5.35 (br. s, IH), 5.41 (br. s, IH), 5.52 (s, IH), 5.58 (br. s, IH), 5.82 (br. s, IH), 734-737 (m, 4H), 7.40-7.42 (m, 2H), 7.51-7.54 (m, 3H), 7.65 (t, IH), 7.73 (d, J = 7.9 Hz, IH), 7.97-8.00 (m, 2H), 10.13 (s, IH); IR (KBr) 3400, 2900, 2200, 1710, 1275 and 1065 cm^"1; mass spectrum [(+) ESI], m/z 724 (M + ΝH₄)⁺; Anal. Calcd. for C₃₆H₃₈N₂O₁₃ 0.5 H₂O: C, 60.42; H, 5.49 N, 3.91, Found: C, 60.36; H, 5.22; N, 3.91.

Example 85

N-(5-r(6-O-Benzoyl-4'.6'-O-benzvIidene-β-D-maltosyl)-oxy-methyl]-2-methyl- phenyl} -acetamide The title compound was prepared as a colorless solid (1.30 g, 60%) from N-

{5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2-methyl-phenyl}-acetamide using a procedure similar to Example 2, mp 193-198 °C; Η ΝMR (DMSO-J₆) δ 2.00 (s, 3H). 2.15 (s. 3H), 3.17 (t, J = 8.4 Hz, IH), 334-3.40 (m, 2H), 3.48-3.62 (m, 4H), 3.69-3.77 (m, 2H), 4.06 (dd, IH), 433-438 (m, 2H), 4.60 (ABq, J = 11.9 Hz, Δδ = 0.08, 2H), 4.61 (d, J = 10.5 Hz, IH), 5.14 (d, J = 4.0 Hz, IH), 5.33 (br. s, 2H), 5.52 (s, IH), 5.56 (br. s, IH), 5.79 (br. s, IH), 7.06 (dd, IH), 7.11 (d, J = 7.9 Hz, IH), 734-737 (m. 4H), 7.40-7.43 (m, 2H), 7.51-7.55 (m, 2H), 7.63-7.68 (m, IH), 7.99- 8.01 (m, 2H), 9.26 (s, IH); IR (KBr) 3250, 2900, 1725, 1650, 1275 and 1070 cm^"1; mass spectrum [(+) ESI], m/z 696 (M + H)⁺; Anal. Calcd. for C₃₆H₄₁NO₁₃: C, 62.15; H, 5.94; N, 2.01. Found: C, 62.20; H, 6.02; N, 2.04.

Example 86

6-r-6-(4-Chloro-3-nitro-benzylsulfanyl)-4.5-dihvdroxy-2-hvdroxymethyl-tetrahvdro- pyran-3-yloxy1-2-phenyl-hexahvdro-pyrano[3.2-d1[ 131dioxine-7.8-diol step 1

(4-Chloro-3-nitro-benzyl) -hepta-O-acetyl-l-thio-β-D-maltoside To a stirred solution of hepta-O-acetyl-1-thio-β-maltose (2.0 g, 3.065 mmol) in acetone (20 ml) were added 4-chloro-3-nitrobenzyl bromide (0.844 mg, 3.37 mmol) and a solution of potassium carbonate (0.423 mg, 3.065 mmol) in water (10 ml). The mixture was boiled under reflux for 30 min, cooled and concentrated. The residue was extracted with dichloromethane, and the combined extracts were washed with water, and brine, dried (MgSO₄) and concentrated. Purification by flash chromatography (40%-60% EtO Ac/petroleum ether gradient) afforded 1.588 g (63%) of the title compound as a white solid, mp 73-75 °C; Η NMR (CDC1₃) δ 1.99 (s, 3 H), 2.00 (s, 3 H), 2.02 (s, 3 H), 2.03 (s, 6 H), 2.11 (s, 3 H), 2.15 (s, 3 H), 3.61 - 3.64 (m, 1 H), 3.80 (d, J = 13.6 Hz, IH), 3.94 - 4.00 (m, 3 H), 4.08 (dd, J = 12.3, 2.4 Hz, 1 H), 4.18 - 4.27 (m. 2 H), 4.36 (d, J = 9.9 Hz, IH), 4.50 (dd, J = 12.1, 2.6 Hz, 1 H), 4.85 (dd, J = 10.5. 4.0 Hz, 1 H), 4.90 (apparant t, J = 9.9 Hz, 1 H), 5.05 (apparant t, J = 9.9 Hz, 1 H). 5.23 (apparant t, J = 9.2 Hz, 1 H), 5.34 (apparant t, J = 9.7 Hz, 1 H), 5.40 (d, J = 4.0 Hz. 1 H), 7.47 (dd, J = 8.4, 2.0 Hz, 1 H), 7.51 (d, J = 8.4 Hz, IH), 7.87 (d. J = 2.0. Hz. 1 H). IR (KBr) 3500, 2950, 1750, 1250 and 1050 cm ¹, mass spectrum [(+) FAB], m/z 822 (M + H)⁺, 844 (M + Na)\ Anal. Calcd. for C₃₃H₄₀C1NO₁₉S: C. 48.21 ; H, 4.90; N, 1.70. Found: C, 47.75; H, 4.86; N, 1.65. step 2 (4-Chloro-3-nitro-benzyl)-l-deoxy-l-thio-β-D-maltoside

The title compound was prepared as a white solid (0.513 g, 99%) from (4- chloro-3-nitro-benzyl) -hepta-O-acetyl-1-thio-β-D-maltoside using a procedure similar to step 4 of Example 1, mp 90-93 °C; Η NMR (DMSΟ-J₆) δ 3.03 - 3.74 (m, , 11 H), 3.80 (d, J = 6.2 Hz, 1 H), 3.86 (d, J = 13.4 Hz, 1 H), 4.01 - 4.08 (m, 2 H), 4.58 (bd. 2 H), 4.98 (bd, 3 H), 5.20 - 5.67 (bs, 3 H), 7.65 - 7.72 (m, 2 H), 8.03 (d, J = 1.76 Hz. 1 H).IR (KBr) 3400, 2930, 1550, 1300 andl075 cm^'1, mass spectrum [(-) FAB], m/z 526 (M - H)^'.Anal. Calcd. for C₁₉H₂₆ClNO₁₂S • H₂O: C, 41.80; H, 5.13; N, 2.56. Found: C, 41.35; H, 4.89; N, 2.40.

step 3

6-[-6-(4-Chloro-3-nitro-benzylsulfanyl)-4,5-dihydroxy-2-hydroxymethyl- tetrahydro-pyran-3-yloxy]-2-phenyI-hexahydro-pyrano[3,2-d][l,3]dioxine-7,8- diol

The title compound was prepared as a white solid from (4-chloro-3-nitro- benzyl)-l-deoxy-l-thio-β-D-maltoside using a procedure similar to Example 24, mp 120-122 °C; ¹H NMR (DMSO-J₆) δ 3.07-3.24 (m, 2H), 3.24-3.43 (m, 3H), 3.47-3.58 (m. 3H), 3.64-3.75 (m, 3H), 3.95 (ABq, J = 13.4 Hz, Δδ = 0.12, 2H), 4.08-4.13 (m, 2H), 4.77 (t, J = 5.5 Hz, IH), 5.12 (d, J = 3.95 Hz, 1 H), 5.28 (d, J = 5.3, Hz, IH). 5.31 (d, J = 5.3, Hz, IH), 5.56 (m, 2H), 5.65 (d, J = 6.4, Hz, IH), 735-7.40 (m, 3H), 7.42-7.46 (m, 2H), 7.66-7.71 (m, 2H), 8.04 (d, J = 1.76 Hz, IH); IR (KBr) 3450, 2930. 1550, 1300 and 1075 cm^"1; mass spectrum [(-) FAB], m/z 614 (M - H)^"; Anal. Calcd. for C₂₆H₃₀C1NO₁₂S: C, 49.96; H, 5.1; N.2.24, Found: C, 49.42; H, 4.78; N, 2.26.

Example 87

(4-Chloro-3-nitro-benzyl) 6-O-benzoyl-4'.6'-O- benzoyl-4'.6',-O-benzylidene-l- thio-β-D-maltoside The title compound was prepared as a white solid from 6-[-6-(4-chloro-3- nitro-benzylsulfanyl)-4,5-dihydroxy-2-hydroxymethyl-tetrahydro-pyran-3-yloxy]-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxine-7,8-diol using a procedure similar to Example 2, mp 105-107 °C; Η NMR (DMSO) δ 3.17-3.23 (m, IH), 3.27-3.42 (m, 2H), 3.46-3.51 (m, IH), 3.53-3.62 (m, 3H), 3.69-3.76 (m, 2H), 3.91 (q, J = 14.1 Hz, 2H), 4.06 (dd, J = 10.3, 4.8 Hz, IH), 4.28 - 4.34 (m, 2H), 4.62 (d, J = 10.5 Hz, IH), 5.13 (d, J = 3.7 Hz, IH), 534 (d, J = 5.3 Hz, IH). 5.41 (d, J = 6.2 Hz, IH), 5.53 (s, IH), 5.64 (d, J = 2.9 Hz, IH), 5.80 (d, J = 6.1 Hz, IH), 7.31 (m, 3H), 7.40-7.43 (m, 2H), 7.47 (t, J = 5.7 Hz, 2H), 7.59-7.65 (m, 3H), 7.95-7.98 (m, 3H); IR (KBr) 3400, 2930, 1745, 1550, 1255 andl075 cm^"1; mass spectrum [(+) FAB], m/z 720 (M + H)⁺, 742 (M + Na)⁺; Anal. Calcd. for C₃₃H₃₄ClNO₁₃S: C, 55.04; H, 4.76; N, 1.95, Found: C, 55.36; H, 4.89; N, 1.91.

Claims

WHAT IS CLAIMED IS:

1. A compound of formula I having the structure

wherein

X is O or S;

R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸. and thiazolyl substituted with R⁸; R² is hydrogen, acyl of 2-6 carbon atoms, haloacyl of 2-6 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-7 carbon atoms, or trifluoromethylacyl of 3-

8 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms.

R³, R⁴, R⁵. and R⁶ are each, independently, hydrogen, acyl of 2-7 carbon atoms, benzoyl, wherein the phenyl moiety is mono-, di-, or tri-substituted with R⁸, haloacyl of 2-7 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2- 7 carbon atoms, or trifluoromethylacyl of 3-8 carbon atoms;

R⁷ is hydrogen, methyl, or phenyl;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, or -CF₃;

R⁹ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂. halogen, -CF₃, -NHR³, -NR³R³, -NR³R¹⁴, -NHCO₂R¹⁴, -NHSO₂R¹⁴,

R¹⁰. R¹¹, and R¹², are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO , halogen, -CF3, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, or -CF₃; R¹³ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, -CF₃, or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen; R¹⁴ is alkyl of 1-6 carbon atoms;

R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO₂R¹⁶;

R¹⁶ is alkyl of 1-6 carbon atoms, benzyl, phenyl, or fluorenyl; n = 0-3; P = 0-6; or a pharmaceutically acceptable salt thereof.

2. The compound according to claim 1, wherein R² is hydrogen, acyl of 2-6 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

R³, R⁴, R⁵, and R⁶ are each, independently, hydrogen, or acyl of 2-7 carbon atoms; R⁹ is hydrogen, -NO₂, halogen, -CF₃, -NHR³, -NR R³, -NR³R¹⁴, -NHCO₂R¹⁴,

-NHSO₂R¹⁴,

or a pharmaceutically acceptable salt thereof

3. The compound according to Claim 2, wherein X is O;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, -CN, or halogen;

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, halogen, or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen; R¹⁶ is alkyl of 1-6 carbon atoms, or fluorenyl; or a pharmaceutically acceptable salt thereof.

4. The compound of claim 1, which is N-{5-[(6-( -Benzoyl-4',6'-O- propylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

5. The compound of claim 1, which is N-{5-[(6-O-Benzyl-4',6'-O- benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

6. The compound of claim 1. which is N-(5-{ [6-O-Benzoyl-4',6'-O-(4- nitro)-benzylidene-β-D-maltosyl]-oxy-methyl}-2-chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof:

7. The compound of claim 1. which is N-{5-[(6-O-Benzoyl-4',6'-O- isobutylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl }-acetamide or a pharmaceutically acceptable salt thereof;

8. The compound of claim 1. which is N-{5-[(6-O-Benzoyl-4',6'-O-((lR)- 2-phenyl-ethylidene)-β-D-maltosyloxy)-methyl]-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

9. The compound of claim 1. which is N-{5-{ [6-O-Benzoyl-4',6'-O-((lR)-

3-cyanopropylidene)-β-D-maltosyloxy]-methyl}-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof:

10. The compound of claim 1, which is Benzoic acid 6-(3-acetylamino-4- chloro-benzoyloxy)-3-(7,8-dihydroxy-2-pyridin-4-yl-hexahydro-pyrano[3,2-d][l,3]- dioxin-6-yloxy)-4,5-dihydroxy-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

11. The compound of claim 1, which is N-{5-[(6-O-Benzoyl-4',6'-O- benzylidene-β-D-maltosyl-oxy)-methyl]-2-chloro-phenyl }-acetamide or a pharmaceutically acceptable salt thereof;

12. The compound of claim 1, which is (R)-N-[2-Chloro-5-[[[6-O -(3- trifluoromethylbenzoyl)-4-O-[4,6O-(phenyl-methylene)-α-D-glucopyranosyl]-β-D- glucopyranosyl]oxy] -methyl] -phenyl] acetamide or a pharmaceutically acceptable salt thereof;

13. The compound of claim 1, which is N-{5-[(4',6'-O-Benzylidene-6-O- (2-iodo)-benzoyl-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

14. The compound of claim 1, which is (R)-N-[-2-Chloro-5-[[[6-O-

(phenylacetyl)-4-O-[4,6-O-(phenylmethylene)- -D-glucopyranosyl]-β-D- glucopyranosyl]oxy]methyl]phenyl] acetamide or a pharmaceutically acceptable salt thereof;

15. The compound of claim 1, which is N-{5-[(4',6'-O-Benzylidene-6-O- phenyl-ethyl-carboxyl-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl }-acetamide or a pharmaceutically acceptable salt thereof;

16. The compound of claim 1, which is 4-Benzoyl-N-{5-[(4',6'-O- benzylidene-6-O-(2-iodo)-benzoyl-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}- benzamide or a pharmaceutically acceptable salt thereof; - I l l -

17. The compound of claim 1, which is N-{5-[(6-O-Benzoyl-4',6'-O- benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl} -carbamic acid methyl ester or a pharmaceutically acceptable salt thereof;

18. The compound of claim 1, which is (4-Chloro-3-nitro-benzyl) 6-O- benzoyl-4',6'-O-benzoyl-4',6',-O-benzylidene-l-thio-β-D-maltoside or a pharmaceutically acceptable salt thereof.

19. The compound of claim 1 , which is:

a) N-{2-Chloro-5-[(4',6'-O-ethylidene)-β-D-maltosyloxymethyl]-phenyl}- acetamide or a pharmaceutically acceptable salt thereof;

b) (R)-N-[5-[[[6-O-Benzoyl-4-O-(4,6-O-ethylidene- -D-glucopyranosyl)-β- D-glucopyranosyl]oxy]methyl]-2-chlorophenyl]acetamide or a pharmaceutically acceptable salt thereof;

c) (R)-N-[2-Chloro-5-[[[2,3-di-O-acetyl-6-O-benzoyl-4-O-(2,3-di-O- acetyl-4,6-O-ethylidene- -D-glucopyranosyl)-β-D- glucopyranosyl]oxy] methyl] phenyl] acetamide or a pharmaceutically acceptable salt thereof;

d) N-{2-Chloro-5-[(4',6'-O-propylidene-β-D-maltosyl)-oxy-methyLj- phenyl}- acetamide or a pharmaceutically acceptable salt thereof;

e) N-(5-{ [4',6'-O-Benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosyl]- oxy-methyl}-2-chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

f) N-(5-{[2,3,2',3'-Tetra-O-acetyl-4',6'-O-benzylidene-6-O-(4- toluenesulfonyl)-β-D-maltosyl]-oxy-methyl}-2-chloro-phenyl)- acetamide or a pharmaceutically acceptable salt thereof; g) N-{5-[(6-O-Benzyl-4',6'-O-ethylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

h) N-(2-Chloro-5-{[4',6'-O-(4-nitro)-benzylidene-β-D-maltosyl]-oxy- methyl}-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

i) N-{2-Chloro-5-[(4',6'-O-(4-chloro)-benzylidene-β-D-maltosyl)-oxy- methyl]-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

j) N-{5-[(6-O-Benzoyl-4',6'-O-(4-chloro)-benzylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

k) N-{2-Chloro-5-[(4',6'-O-isobutylidene-β-D-maltosyl)-oxy-methyl]- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

1) N-{5-[(4'.6'-O-((lR)-2-Phenyl-ethylidene)-β-D-maltosyloxy)-methyl]-

2-chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

m) N-{2-Chloro-5-[(4',6'-O-((lR)-3-cyano-propylidene)-β-D-maltosyloxy)- methyl]-phenyl}-acetamide or a pharmaceutically acceptable salt thereof:

n) N-{2-Chloro-5-[(4',6'-O-((lR)-3-ethoxy-propylidene)-β-D- maltosyloxy)-methyl] -phenyl} -acetamide or a pharmaceutically acceptable salt thereof; o) N-{5-{ [6-O-Benzoyl-4',6'-O-((lR)-3-ethoxypropylidene)-β-D- maltosyloxy]-methyl}-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

p) N-(2-Chloro-5-{[4',6'-O-(4-pyridinemethylidene)-β-D-maltosyl]-oxy- methyl}-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

q) N-{5-[(4'.6'-O-Benzylidene-β-D-maltosyloxy)-methyl]-2-chloro- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

r) N-{5-[(4'.6'-O-Benzylidene-2,2',3,3',6-penta-O-acetyl-β-D-maltosyl- oxy)-methyl]-2-chloro-phenyl}-acetamide or a pharmaceutically acceptable salt thereof;

s) (R)-N-[2-Chloro-5-[[[2,3-di-O-acetyl-6-O-benzoyl-4-O-[2,3-di-O- acetyl-4.6- O- (phenylmethylene)- -D-glucopyranoysl] - β- glucopyranosyl]-oxy]methyl]-phenyl]acetamide or a pharmaceutically acceptable salt thereof;

t) (R)-N-[2-Chloro-5-[[[6-O-(5-methoxy-l,5-dioxopentyl)-4-O-[4,6-O-

(phenylmethylene)-α-D-glucopyranoysl]-β-D- glucopyranosyl]oxy]methyl]-phenyl]acetamide or a pharmaceutically acceptable salt thereof;

u) 4-Chloro-3-nitro-benzyl-4',6'-O-benyzlidene-β-D-maltoside or a pharmaceutically acceptable salt thereof;

v) 4-Chloro-3-nitro-benzyl-6-O-benzoyl-4',6'-O-benyzlidene-β-D- maltoside or a pharmaceutically acceptable salt thereof; w) (R)-(4-Chloro-3-nitrophenyl)methyl-2,3-di-O-acetyl-6-O-benzoyl-4-O- [2,3-di-O-acetyl-4,6-O-(phenylmethylene)-α-D-glucopyranosyl]-β-D- glucopyranoside or a pharmaceutically acceptable salt thereof;

x) Nicotinic acid 6-(4-chloro-3-nitro-benzyloxy)-3-(7,8-dihydroxy-2- phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy- tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

y) (R)-(4-Chloro-3-nitrophenyl)methyl 4-[2,3-di-0-acetyl-4,6-0-

(phenylmethylene)-α-D-glucopyranosyl]-β-D-glucopyranoside 2,3- diacetate 6-(3-pyridinecarboxylate) or a pharmaceutically acceptable salt thereof;

z) 4-Methoxy-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- dihydroxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5- dihydroxy-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

aa) 4-Methoxy-benzoic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro- benzyloxy)-3-(7,8-diacetoxy-2-phenyl-hexahydro-pyrano[3,2- d][l,3]dioxin-6-yloxy)-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

bb) 4-Chloro-benzoic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- dihydroxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5- dihydroxy-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

cc) 4-Chloro-benzoic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro- benzyloxy)-3-(7,8-diacetoxy-2-phenyl-hexahydro-pyrano[3,2- d][l,3]dioxin-6-yloxy)-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

dd) (R)-N-[2-Chloro-5-[[[6-O -(4-chloro-3-nitrobenzoyl)-4-O-[4,6O- (phenylmethylene)-α-D-glucopyranosyl]-β-D- glucopyranosyl]oxy] methyl] phenyl] acetamide or a pharmaceutically acceptable salt thereof;

ee) N-{5-[(2,2',3,-Tri-O -Ncetyl-6-O -(4-chloro-3-nitrobenzoyl)-4',6'-O- (benzylidene)-β-D-maltosyl)-oxymethyl]-2-chloro-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

ff) (R)-N-[2-Chloro-5-[[[6- O -(4-cyanobenzoyl)-4-O-[4,6O-(phenyl- methylene)-α-D-glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]- phenyl] acetamide or a pharmaceutically acceptable salt thereof;

gg) (R)-N-[2-Chloro-5-[[[6-O -(4-nitrobenzoyl)-4-O-[4,6O-(phenyl- methylene)-α-D-glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]- phenyl] acetamide or a pharmaceutically acceptable salt thereof;

hh) N-{5-[(4',6'-O-Benzylidene-6-O-(3-iodo)-benzoyl-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

ii) N-{5-[(4',6'-O-Benzylidene-6-(4-iodo-benzoyl)-oxy-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

jj) (R)-N-[2-Chloro-5-[[[2,3-di-O-acetyl-4-O-[2,3-di-O-acetyl-4,6-O- (phenyl-methylene)-α-D-glucopyranosyl]-6-O-(phenylacetyl)-β-D- glucopyranosyl]-oxy]methyl]phenyl]acetamide or a pharmaceutically acceptable salt thereof; kk) N-{5-[(4',6'-O-Benzylidene-6-O-phenyl-propyl~carboxyl-β-D-maltosyl)- oxy-methyl]-2-chloro-phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

11) Diphenyl- acetic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8- dihydroxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5- dihydroxy-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

mm) Diphenyl-acetic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro-benzyl- oxy)-3-(7,8-diacetoxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6- yloxy)-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

nn) (3,4-Dimethoxy-phenyl)-acetic acid 6-(3-acetylamino-4-chloro-benzyl- oxy)-3-(7.8-dihydroxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6- yloxy)-4.5-dihydroxy-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

oo) (3,4-Dimethoxy-phenyl)-acetic acid 4,5-diacetoxy-6-(3-acetylamino-4- chloro-benzyloxy)-3-(7,8-diacetoxy-2-phenyl-hexahydro-pyrano[3,2-d]- [l,3]dioxin-6-yloxy)-tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

pp) Nicotinic acid 6-(3-acetylamino-4-chloro-benzyloxy)-3-(7,8-dihydroxy- 2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)-4,5-dihydroxy- tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

qq) Nicotinic acid 4,5-diacetoxy-6-(3-acetylamino-4-chloro-benzyloxy)-3- (7.8-diacetoxy-2-phenyl-hexahydro-pyrano[3,2-d][l,3]dioxin-6-yloxy)- tetrahydro-pyran-2-ylmethyl ester or a pharmaceutically acceptable salt thereof;

rr) (R)-N-[5-[[[6-O-(4-Benzoylbenzoyl)-4-O-[4,6-O-(phenylmethylene)-α- D-glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]-2-chlorophenyl]- acetamide or a pharmaceutically acceptable salt thereof;

ss) N-{5-[(4',6'-O-Benzylidene-β-maltosyl)-oxy-methyl]-2~methyl- phenyl} -acetamide or a pharmaceutically acceptable salt thereof;

tt) N-Acetyl-{5-[(2,2',3,3',6-penta-O-acetyl-4',6'-O-benzylidene-β-D- maltosyl)-oxy-methyl]-2-methyl-phenyl}acetamide or a pharmaceutically acceptable salt thereof;

uu) N-(5-{[4',6'-O-Benzylidene-6-O-(4-toluenesulfonyl)-β-D-maltosyl]- oxy-methyl}-2-methyl-phenyl)-acetamide or a pharmaceutically acceptable salt thereof;

vv) N-{5-[(4',6'-O-Benzylidene-6-O-phenyl-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

ww) (R)-N-[2-Chloro-5-[[[4-O-[4',6'-O-(phenylmethylene)- -D-gluco- pyranosyl]-β-D-glucopyranosyl]oxy]methyl] phenyl]-3-pyridine- carboxamide or a pharmaceutically acceptable salt thereof;

xx) (R)-N-[5-[[[6-O-Benzoyl-4-O-[4',6'-O-(phenylmethylene)- -D- glucopyranosyl]-β-D-glucopyranosyl]oxy]methyl]-2-chlorophenyl]-3- pyridinecarboxamide or a pharmaceutically acceptable salt thereof;

yy) Furan-2-carboxylic acid {5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy- methyl]-2-chloro-phenyl}-amide or a pharmaceutically acceptable salt thereof; zz) Furan-2-carboxylic acid {5-[(6-O-benzoyl-4',6'-O-benzylidene-β-D- maltosyl)-oxy-methyl]-2-chloro-phenyl}-amide or a pharmaceutically acceptable salt thereof;

aaa) N-{2-Chloro-5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyLJ- phenyl}-pent-4-enamide or a pharmaceutically acceptable salt thereof;

bbb) N-{2-Chloro-5-[(6-O-benzoyl-4',6'-O-benzilidene-β-D-maltosyl)-oxy- methyl] -phenyl }-pent-4-enamide or a pharmaceutically acceptable salt thereof;

ccc) 5-(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl-2- chloro-phenylamine or a pharmaceutically acceptable salt thereof;

ddd) (4-Chloro)-benzyl-4',6'-O-benzylidene-β-D-maltoside or a pharmaceutically acceptable salt thereof;

eee) Benzoic acid l-O-(4-chloro)-benzyl-4',6'-O-benzylidene-6-deoxy-β-D- malto-6-yl ester or a pharmaceutically acceptable salt thereof;

fff) 4-Benzoyl-N-{5-[(4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl } -benzamide or a pharmaceutically acceptable salt thereof;

ggg) 4-Benzoyl-N-{5-[(6-benzoyl-oxy-4',6'-O-benzylidene-β-D-maltosyl)- oxy-methyl]-2-chloro-phenyl} -benzoic acid amide or a pharmaceutically acceptable salt thereof;

hhh) 4-Benzoyl-N-{5-[(4',6'-O-benzylidene-6-O-(3-iodo-benzoyl)-β-D- maltosyl)-oxy-methyl]-2-chloro-phenyl}-benzamide or a pharmaceutically acceptable salt thereof; iii) 4-Benzoyl-N-{5-[(4',6'-O-benzylidene-6-(4-iodo-benzoyl)-oxy-β-D- maltosyl)-oxy-methyl]-2-chloro-phenyl} -benzoic acid amide or a pharmaceutically acceptable salt thereof;

jjj) (l-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl-carbamoyl}ethyl)-carbamic acid 9H-fluoren-9ylmethyl ester or a pharmaceutically acceptable salt thereof;

kkk) N-(9H-Fluoren-9ylmethoxycarbonyl)-N'-{5-[(6-O-benzoyl-4',6'-O- benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro-phenyl}-L- alaninamide or a pharmaceutically acceptable salt thereof;

111) N'-{5-[(6-O-benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- chloro-phenyl}-L-alaninamide or a pharmaceutically acceptable salt thereof;

mmm) N-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxymethyl]-2-chloro- phenyl}-N-methyl-acetamide or a pharmaceutically acceptable salt thereof;

nnn) N-{5-[(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxymethyl]-2- chloro-phenyl}-N-methyl- acetamide or a pharmaceutically acceptable salt thereof;

ooo) N-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl} -carbamic acid methyl ester or a pharmaceutically acceptable salt thereof;

ppp) N-{5-[(6-O-(3-Benzyl-l-oxo-propyl)-4',6'-O-benzylidene-β-D- maltosyl)-oxy-methyl]-2-chloro-phenyl}-carbamic acid methyl ester or a pharmaceutically acceptable salt thereof; qqq) N-{5-[(4',6'-O-Benzylidene-β-D-maltosyl)-oxy-methyl]-2-chloro- phenyl}-methanesulfonamide or a pharmaceutically acceptable salt thereof;

rrr) N-{5-[(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- cyano-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

sss) N-{5-[(6-O-Benzoyl-4',6'-O-benzylidene-β-D-maltosyl)-oxy-methyl]-2- methyl-phenyl } -acetamide or a pharmaceutically acceptable salt thereof;

ttt) 6-[-6-(4-Chloro-3-nitro-benzylsulfanyl)-4,5-dihydroxy-2-hydroxy- methyl-tetrahydro-pyran-3-yloxy]-2-phenyl-hexahydro-pyrano[3,2- d][l,3]dioxine-7,8-diol or a pharmaceutically acceptable salt thereof;

20. A method of treating or inhibiting hyperproliferative vascular disorders in a mammal in need thereof, which comprises administering to said mammal an effective amount of a compound of formula I having the structure

I wherein

X is O or S;

R¹ is alkyl of 1-6 carbon atoms, haloalkyl of 1-6 carbon atoms, nitroalkyl of 1-6 carbon atoms, cyanoalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, phenyl mono-, di-, or tri-substituted with R⁸, phenylalkyl of 7-10 carbon atoms, wherein the phenyl ring is mono-, di-, or tri-substituted with R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸. and thiazolyl substituted with R⁸; R² is hydrogen, acyl of 2-6 carbon atoms, haloacyl of 2-6 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-7 carbon atoms, or trifluoromethylacyl of 3- 8 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

R³, R⁴, R⁵, and R⁶ are each, independently, hydrogen, acyl of 2-7 carbon atoms, benzoyl. wherein the phenyl moiety is mono-, di-, or tri-substituted with R⁸, haloacyl of 2-7 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2- 7 carbon atoms, or trifluoromethylacyl of 3-8 carbon atoms; R⁷ is hydrogen, methyl, or phenyl;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂. halogen, or -CF₃;

R⁹ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂. halogen, -CF₃, -NHR³, -NR R³, -NR R¹⁴, -NHCO₂R¹⁴, -NHSO₂R¹⁴,

R¹⁰, R¹¹, and R¹², are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN. -NO₂, halogen, or -CF₃;

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, -CF₃, or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen;

R¹⁴ is alkyl of 1-6 carbon atoms; R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO₂R¹⁶;

21. A method of treating or inhibiting restenosis in a mammal in need thereof, which comprises administering to said mammal an effective amount of a compound of formula I having the structure

I wherein

X is O or S;

R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸, and thiazolyl substituted with R⁸;

R² is hydrogen, acyl of 2-6 carbon atoms, haloacyl of 2-6 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-7 carbon atoms, or trifluoromethylacyl of 3-

8 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

¹⁰

R³, R⁴, R⁵, and R⁶ are each, independently, hydrogen, acyl of 2-7 carbon atoms, benzoyl, wherein the phenyl moiety is mono-, di-, or tri-substituted with R⁸, haloacyl of 2-7 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-

7 carbon atoms, or trifluoromethylacyl of 3-8 carbon atoms;

R⁷ is hydrogen, methyl, or phenyl;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO . halogen, or -CF₃; R⁹ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂. halogen, -CF₃, -NHR³, -NR³R³, -NR R¹⁴, -NHCO₂R¹⁴, -NHSO₂R¹⁴,

R¹⁰, R¹¹. and R¹², are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, or -CF₃;

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, -CF , or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen; R¹⁴ is alkyl of 1-6 carbon atoms; R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO₂R¹⁶;

R¹⁶ is alkyl of 1-6 carbon atoms, benzyl, phenyl, or fluorenyl; n = 0-3: p = 0-6; or a pharmaceutically acceptable salt thereof.

22. The method according to claim 21, wherein the restenosis results from a vascular angioplasty procedure, vascular reconstructive surgery, or organ or tissue transplantation.

23. A method of inhibiting angiogenesis in a malignant tumor, sarcoma, or neoplastic tissue in a mammal in need thereof, which comprises administering to said mammal an effective amount of a compound of formula I having the structure

R

wherein

X is O or S; R¹ is alkyl of 1-6 carbon atoms, haloalkyl of 1-6 carbon atoms, nitroalkyl of 1-6 carbon atoms, cyanoalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, phenyl mono-, di-, or tri-substituted with R⁸, phenylalkyl of 7-10 carbon atoms, wherein the phenyl ring is mono-, di-, or tri-substituted with R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸, and thiazolyl substituted with R⁸;

R² is hydrogen, acyl of 2-6 carbon atoms, haloacyl of 2-6 carbon atoms, nitroacyl of 2-7 carbon atoms, cyanoacyl of 2-7 carbon atoms, or trifluoromethylacyl of 3- 8 carbon atoms, carboalkoxyacyl of 4-12 carbon atoms,

7 carbon atoms, or trifluoromethylacyl of 3-8 carbon atoms;

R⁷ is hydrogen, methyl, or phenyl;

R⁸ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, or -CF₃; R⁹ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, -NHR³, -NR³R³, -NR R¹⁴, -NHCO₂R¹⁴, -NHSO₂R¹⁴,

R¹³ is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen. -CF₃, or phenyl group, wherein the phenyl moiety is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen;

24. A pharmaceutical composition which comprises a compound of formula I having the structure

wherein X is O or S; R¹ is alkyl of 1-6 carbon atoms, haloalkyl of 1-6 carbon atoms, nitroalkyl of 1-6 carbon atoms, cyanoalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, phenyl mono-, di-, or tri-substituted with R⁸, phenylalkyl of 7-10 carbon atoms, wherein the phenyl ring is mono-, di-, or tri-substituted with R⁸, pyridyl substituted with R⁸, furyl substituted with R⁸, thienyl substituted with R⁸, and thiazolyl substituted with R⁸;

7 carbon atoms, or trifluoromethylacyl of 3-8 carbon atoms;

R⁷ is hydrogen, methyl, or phenyl;

R¹⁰, R¹¹, and R¹². are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, phenyl, -CN, -NO₂, halogen, -CF₃, acyl of 2-7 carbon atoms, or benzoyl, wherein the phenyl group or the phenyl moiety of the benzoyl group is optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, -CN, -NO₂, halogen, or -CF₃;

R¹⁴ is alkyl of 1-6 carbon atoms; R¹⁵ is hydrogen, acyl of 2-7 carbon atoms, benzoyl, or -CO R¹⁶;

R¹⁶ is alkyl of 1-6 carbon atoms, benzyl, phenyl, or fluorenyl; n = 0-3; p = 0-6; or a pharmaceutically acceptable salt thereof, and a pharmaceutical carrier.