Classifications

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  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
  • C07D295/16—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
  • C07D295/18—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carboxylic acids, or sulfur or nitrogen analogues thereof
  • C07D295/182—Radicals derived from carboxylic acids
  • C07D295/185—Radicals derived from carboxylic acids from aliphatic carboxylic acids
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  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C231/00—Preparation of carboxylic acid amides
  • C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C233/00—Carboxylic acid amides
  • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
  • C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
  • C07C233/09—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C233/00—Carboxylic acid amides
  • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
  • C07C233/16—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
  • C07C233/17—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
  • C07C233/20—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C235/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
  • C07C235/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton
  • C07C235/32—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings
  • C07C235/34—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C247/00—Compounds containing azido groups
  • C07C247/02—Compounds containing azido groups with azido groups bound to acyclic carbon atoms of a carbon skeleton
  • C07C247/12—Compounds containing azido groups with azido groups bound to acyclic carbon atoms of a carbon skeleton being further substituted by carboxyl groups
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
  • C07C51/06—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid amides
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
  • C07C57/52—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing halogen
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
  • C07C57/64—Acyl halides
  • C07C57/76—Acyl halides containing halogen outside the carbonyl halide groups
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
  • C07C69/62—Halogen-containing esters
  • C07C69/65—Halogen-containing esters of unsaturated acids
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
  • C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
  • C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
  • C07D263/16—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D263/18—Oxygen atoms
  • C07D263/20—Oxygen atoms attached in position 2
  • C07D263/22—Oxygen atoms attached in position 2 with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to other ring carbon atoms

Definitions

• the invention relates to a process for the preparation of N-substituted 2, 7-D ⁇ alkyl-4-hydro-xy-5-armo-8-aryl-octanoylamides and their physiologically acceptable salts; especially of N- (3-ammo-2, 2-dimethyl-3-ox3propyl) -2, 7-dim (1-methylethyl) -4-hydroxy-5-ammo-8- [4-methoxy / -3 - (3-methoxy-propoxy) phenyl] octanamides and their physiologically acceptable salts, very particularly of 2 (S), 4 (5), 5 (S), 7 (S) -N- (3-Ammo-2, 2 -d ⁇ methyl-3-oxopropyl) -2, 7-d ⁇ (1-methylethyl) -4-hydroxy-5-amino-8- [4-methoxy-3- (3-methoxypropoxy) phenyl] octane a id
• a first subject of the invention is a process for the preparation of compounds of formula I,
• Ri and R independently of one another H, C ⁇ -d-alkyl, d _ d-haloalkyl, C : -C c -alkoxy, dd-alkoxy-Cj-d -alkyl, or C ; represent d-alkoxy-dd-alkyloxy, R ⁇ dC. -Alkyl means R. for CC. -Alkyl stands, and R- C -.- C -alkyl, dC.- hydroxyalkyl, Ci-d -alkoxy-dC, -alkyl, dC . -Alkanoyloxy-C -.- C.
• the azide group of the compound of the formula V is reduced to the amine group, and then the compounds of the formula I are isolated, optionally with the addition of a salt-forming acid.
• R and R can be linear or branched as alkyl and preferably contain 1 to 4 carbon atoms. Examples are methyl, Ethyl, n- and i-propyl, n-, i- and t-butyl, pentyl and hexyl.
• R 1 and R 2 can be linear or branched as haloalkyl and preferably contain 1 to 4, particularly preferably 1 or 2, carbon atoms. Examples are fluoromethyl, difluoromethyl, trifluoroethyl, chloromethyl, dichloromethyl, trichloromethyl, 2-chloroethyl and 2,2,2-trifluoroethyl.
• Ri and R 2 can be linear or branched as alkoxy and preferably contain 1 to 4 carbon atoms. Examples are methoxy, ethoxy, n- and i-propyloxy, n-, i- and t-butyloxy, pentyloxy and hexyloxy.
• R] and R_ can be linear or branched as d.-C-alkoxy-dd-alkyloxy.
• the alkoxy group contains preferably 1 to 4 and especially 1 or 2 C atoms, and the alkyloxy group ent ⁇ keeps preferably 1 to 4 carbon atoms.
• Examples are methoxy-methyloxy, l-methoxyeth-2-yloxy, l-methoxyprop-3-yloxy, 1-methoxybut-4-yloxy, methoxypentyloxy, methoxyhexyloxy, ethoxymethyloxy, l-ethoxyeth-2-yloxy, l-ethoxyprop-3- yloxy, l-ethoxybut-4-yloxy, ethoxypentyloxy, ethoxyhexyloxy, propyloxymethyloxy, butyloxymethyloxy, l-propyloxyeth-2-yloxy and l-butyloxyeth-2-yloxy.
• R 1 denotes methoxy or ethoxy -CC 4 -alkyloxy
• R 2 preferably represents methoxy or ethoxy.
• R 1 denotes methoxy or ethoxy -CC 4 -alkyloxy
• R 2 preferably represents methoxy or ethoxy.
• R ⁇ and RJ can be linear or branched as alkyl and preferably contain 1 to 4 carbon atoms. Examples are methyl, ethyl, n- and i-propyl, n-, i- and t-butyl, pentyl and hexyl. In a preferred embodiment in the compounds of the formula I R, and R j are isopropyl.
• R can be linear or branched and preferably contain 1 to 4 carbon atoms. Examples of alkyl have been given previously. Methyl, ethyl, n- and 1-propyl, n-, l- and t-butyl are preferred.
• R ⁇ can be as C -C. -Hydroxyalkyl l_near or branched and preferably contain 2 to 6 carbon atoms. Some examples are 2-hydroxyethy-l-yl, 2-hydroxyprop-l-yl, 3-hydroxyprop-l-yl, 2-, 3- or 4-hydroxybut-l-yl, hy ⁇ roxypentyl and hydroxyhexyl.
• R 5 can be linear or branched as dd-alkoxy-dd-alkyl.
• the alkoxy group preferably contains 1 to 4 C atoms and the alkyl group preferably 2 to 4 C atoms.
• Some examples are 2-methoxyethy-l-yl, 2-metr.oxyprop-l-, 3-methoxyprop-1-yl, 2-, 3- or 4-methoxybut-l-yl, 2-etnoxyethy-l-yi, 2-ethoxyprop-1-yl, 3-ethoxyprop-l-yl ,. and 2-, 3- or 4-ethoxybut-1-yl.
• R may be branched as dd alkanoyloxy-C -d alkyl linear or ⁇ ver.
• the alkanoyl group preferably contains 1 to 4 carbon atoms and the alkyl group preferably 2 to 4 carbon atoms.
• Some examples are formyloxymethx 1, formyloxyethyl, acetyloxyethyl, propionyloxyethyl and butyroyloxyethyl.
• R 5 may be branched as a C ⁇ -C linear or b -Am ⁇ noalkyl and preferably 2 to 4 C atoms.
• Some examples are 2-ammoethyl, 2- or 3-aminoprop-1-yl and 2-, 3- or 4-ammobut-1-yl.
• Rc can be linear or branched as d.-C b -alkylam-dC r -alkyl and C -d-dialkyl-am ⁇ no-C ⁇ -C D -alkyl.
• the alkylammo group preferably contains C 1 -C alkyl groups and the alkyl group preferably 2 to 4 C atoms.
• Some examples are 2-methylammoeth-1-yl, 2-dimethylamino-eth-1-yl, 2-ethylammoeth-1-yl, 2-ethylammoeth-1-yl, 3-methylamino-prop-l-yl, 3-dimethylammopropyl l-yl, 4-methylammobut-l-yl and 4-
• R 5 can be linear or ver ⁇ branched as C ⁇ -C -alkano ⁇ lamido-C -d-alkyl.
• the alkanoyl group preferably contains 1 to 4 carbon atoms and the alkyl group preferably 1 to 4 carbon atoms.
• Some examples are 2-Formam ⁇ doeth-l-yl, 2-Acetam ⁇ doeth-l-yl, 3-Prop ⁇ onylam ⁇ doeth-1-yl and 4-Butyroylam ⁇ doeth-l-yl.
• R- can be linear or branched as HO (0) C -C -alkyl, and the alkyl group preferably contains 2 to 4 carbon atoms. Some examples are carboxy ethyl, carboxyethyl, carboxypropyl and carboxybutyl.
• R may be branched as a C -C alkylO- (0) -C CC alkyl or linear ⁇ ver, and the alkyl groups preferably contain ⁇ inde pendently from 1 to 4 carbon atoms.
• Some examples are methoxycarbonylmethyi, 2-methoxycarbonyleth-l-yl, 3-methoxycarbonylprop-1-yl, 4-methoxycarbonylbut-l-yl, ethoxycarbonylethyl, 2-ethoxycarbonyleth-l-yl, 3-ethoxycarbonylprop- 1-yl, 4-ethoxycarbonylbut-l-yl.
• R * can be linear or branched as H ⁇ NC (0) -C -C alkyl, and the alkyl group preferably contains 2 to 6 carbon atoms.
• Some examples are carbamidomethyl, 2-carbam ⁇ doeth-l-yl, 2-carbamido-2, 2-dimethyleth-l-yl, 2- or 3-carbamidoprop-l-yl, 2-, 3- or 4-carbamidobut-l-yl, 3-carbamido-2-methyl-prop-1 -yl, 3-carbamido-l, 2 -dimethylprop-1-yl, 3-carbamido-3-methylprop-l-yl, 3-carbamido-2, 2-dimethylprop-l-yl, 2-, 3-, 4 or 5-carbamidopent-l-yl, 4-carbamido-3, 3- or -2,2-dimethylbut-1-yl.
• R can be linear or branched as dC 6 -alkyl-HN-C (0) -dC-alkyl or (dd ; -alkyl) 2 NC (0) -CC 6 -alkyl, and the NH-alkyl group preferably contains 1 to 4 C. -Atoms, as well as the alkyl group preferably 2 to 6 carbon atoms. Examples are the aforementioned carbamidoalkyl groups, the N atom of which is substituted by one or two methyl, ethyl, propyl or butyl.
• a preferred subgroup of compounds of formula I is that wherein R is ⁇ dC-alkoxy or dd-alkoxy-Ci-d-alkyloxy, R ; dC 4 represents alkoxy, R is dd-alkyl, R 4 is C 1 -C 4 -alkyl and R represents H : NC (0) -dd-alkyl which is optionally substituted by N-mono- or N-di-dd-alkyl.
• a more preferred subgroup of compounds of formula I are those wherein R, dd methoxy-alkyloxy, R: represents methoxy or ethoxy, R, C, -C 4 alkyl, RC; -C is alkyl and R- : is H 2 NC (O) -dd-alkyl.
• a very particularly preferred compound of the formula I is that in which R is 3-methoxy-prop-3-ylpxy, R 2 is methoxy, R 2 and R are 1-methyleth-1-yl, and R-. H : NC (0) - [C (CH 3 );] -CH-.
• the compounds of formula I have 4 stereogenic carbon atoms. According to the invention, all possible diastereomers and any mixtures are included. The 2 (S), (S), 5 (S), 7 (S) -diastereomers of the formula Ia are preferred.
• R, R_, R ,, R, and R ⁇ have the meanings given above, including the preferences.
• the compound of the formula Ib is very particularly preferred
• the desired diastereomers can be isolated from the mixtures by chromatographic methods or fractional crystallization or can be obtained by means of asymmetric synthesis.
• R. and R-m formula II can be branched as alkyl and preferably linear and are preferably C -C -alkyl, for example methyl or ethyl.
• R-ka n as A.lkoxy is preferably linear and is preferably C-2 alkoxy, for example methoxy or ethoxy.
• P and R together are preferably tetramethylene, -CH CH -O-C (0) - or -CH (CH_C H) CH -O-C (0) -.
• the individual process steps can m Jacobv.art Lo ⁇ be conducted solvents.
• Suitable solvents are Waser and or ⁇ aniscne Losungsrittel, especially polar organic solvents which a ⁇ ch can be used as mixtures of at least two solvents.
• solvents examples include corium hydrogen (petroleum ether, pentane, hexane, cyclohexane, methylcyclohexane, benzene, Toluene, xylene), halogenated hydrocarbon (methylene chloride, chloroform, tetrachloroethane, chlorobenzene); Ether (diethyl ether, dibutyl ether, tetrahydrofuran, dioxane, ethylene glycol dimethyl or diethyl ether); Carboxylic acid esters and lactones (methyl acetate, ethyl acetate, methyl propionate, valerolactone); N, N-substituted carboxamides and lactams (dimethylformamide, dimethyl acetamide, N-methylpyrrolidone); Ketones (acetone, methyl isobutyl ketone, cyclohexanone); Sulfoxides and sulfones
• Methylpyrrolid, N-methylpiperazm, N-methylmorpholm and organic acids (acetic acid, formic acid).
• Suitable chlorination, bromination and iodinating agents are elemental bromine and iodine, in particular N-chloro, N-bromo- and N-iodocarboxamides and -dicarboximides.
• Preferred are N-chloro-, N-bromo- and ⁇ -Iodphthal ⁇ r ⁇ d and be ⁇ particularly chlorine, N-bromo- and N-iodosuccinimide, and tertiary butyl hypochlorite and N-halogenated sulfonamides and imides, for example chlorine T. Die Reakt_on advantageously becomes organic solvent no.
• the Itemstem ⁇ temperature may be, for example, from about -.
• Be "0 ° C to room temperature, and preferably -30 ° C to 10 ° C carboxamides are advantageously ized presence of inorganic or orga ⁇ African acids, at least equimolar amounts of water and water-miscible solvents lacto , for example tetrahydrofuran or dioxane.
• Suitable acids are for example formic acid, acetic acid, methanesulfonic acid, trifluoroacetic acid, t ⁇ fluoromethanesulfonic acid, toluenesulfonic acid, HS0 4 , H, P0 4 , hydrogen halide acids, acidic ion exchange resins, acids immobilized on solid supports. Water is generally used in at least equimolar amounts.
• Such connections are generally known. It can be 2-hydroxypy ⁇ dm, N-hydroxycarbonamides and -l ide, and carboximides (N-hydroxysuccimide).
• As a solvent used to or- ganic solvent preferably tertiary nurse on Bei ⁇ play Trimethyi- o ⁇ er Triethylamm.
• the reaction temperature can be, for example, about 40 ° C to 150 ° C and preferably 50 ° C to 120 ° C.
• the reduction of the azide group to the M group in the compounds of the formulas V or Va is carried out in a manner known per se (see Chemical Reviews, Vol. 88 (1988), pages 298 to 317), for example using metal hydrides or, more appropriately, catalytically with hydrogen in the presence of homogeneous (Wilkmson catalyst) or heterogeneous catalysts, for example Raney nickel or noble metal catalysts such as platinum or palladium, optionally on support materials such as carbon.
• the hydrogenation can also be optionally catalytically under transfer conditions, for example with ammonium formate as hydrogen donor Runaway ⁇ leads.
• Organic solvents are advantageously used as solvents.
• the reaction temperature can be, for example, approximately from 0 ° C. to 200 ° C. and preferably from 10 ° C. to 100 ° C.
• the hydrogenation can be carried out at normal pressure or elevated pressure up to, for example, 100 bar, preferably up to 50 bar.
• the compounds of formula I can SiCN m at a known manner by treatment with mono- o ⁇ er polybasic, focussed on inorganic or organic acid addition salts are m überge ⁇ leads. Hemifumarates are preferred.
• Ri is particularly preferably 1-methoxy-prop-3-yloxy
• F_ is methoxy
• R and R are isopropyl and is R, methyl or ethyl
• R is methyl, ethyl or methoxy
• Another object of the invention are compounds of formula III
• Ri, R ⁇ , R ,, R and X have the meanings given above, including the preferences.
• Ri is particularly preferably l-methoxy-prop-3-yloxy, R ⁇ is methoxy, R and R f is isopropyl and X is Cl, Br or I.
• the compounds of formula II can be obtained by using a compound of formula VI
• the reaction temperature can be, for example, -50 to 80 ° C, preferably -20 to 50 ° C.
• Catalytic amounts can mean, for example, 0.1 to 20% by weight, based on a compound of the formula VII.
• the reaction is carried out in such a way that a compound of the formula VI is first used as a Grignard compound (for example with magnesium) converts and then adds a solution of the compound of formula VII, metal complex and N-methylpyrrolidone, or vice versa.
• a Grignard compound for example with magnesium
• Catalytic amounts can, for example, 1 to 10 mol%, preferably 1 to 5 mol%, based on the compounds of the formulas VI or VII.
• the compounds of the formula VII in the form of their racemates or enantiomers are new and another object of the invention. They can be prepared by reacting metallized isovalane acid esters (for example lithium isovaleric acid esters) with 1,3-tanshalopropene, then halogenating the carboxylic acid formed to give the acid halide and reacting with a secondary amine.
• the coupling of isovalane acid with Tans-1, 3-halogenopropene can be carried out asymmetrically according to the method described by DA Evans Asymmetrie Synthesis, Vol. 3, 1984 (Academic Press Inc.), pages 2-liO. Further details are described in the examples.
• Enantiomers are available then a racemate resolution of the carboxylic acids with for example Cmchoni- din, or via an enzymatic resolution of the ent ⁇ speaking Carbonsaureester. Details are described in the examples.
• Another object of the invention sm ⁇ compounds of formula VII in the form of their racerates or enantiomers
• R 4 , R 6 and R 7 have the meanings given above, including the preferences, and Z is Cl, Br or I and preferably Cl.
• the compounds of formula I which are complex per se, can be prepared in a convergent and simple manner, which also applies specifically to an enantio- or diastereoselective synthesis.
• the total yield over process stages a) to d) can be up to 25% and even 30 5 c and more, which enables industrial use.
• reaction mixture is taken up in 100 ml of water and washed with diethyl ether (2 x 200 ml).
• the aqueous phase is acidified with 2N hydrochloric acid and extracted with ethyl acetate (4x).
• the combined organic phases are dried with sodium sulfate, filtered and evaporated on a Rotavapor.
• Example B1 A stirred solution of 24.9 ml of diisopropylamm and 240 ml of tetrahydrofuran is cooled to minus 15 ° C. and 100 ml of 1.6 M n-butyllithium solution (m hexane) are added for 10 minutes. The solution is stirred for 30 minutes at -15 ° C. and then a solution of 24.1 ml of ethyl isovalerate and 80 ml of tetrahydrofuran is added dropwise over 30 minutes. The mixture is stirred for a further 5 minutes at -15 ° C. and then 19.5 g of trans-1,3-dichloropropene and 2.4 g of sodium iodide are added in succession.
• Example B6 A solution of 1.53 g of dimethylamm, 3.66 ml of pyride and 25 ml of dichloromethane is cooled to 0 ° C. and 4.42 g of B5 in 25 ml of dichloromethane are then added dropwise at 0 to -10 ° C. The reaction mixture is stirred for a further 2 hours at 0 ° C. and then evaporated on a Rotavapor. The residue is distributed between diethyl ether (2x) and 2N hydrochloric acid (3x), saturated sodium bicarbonate solution (lx) and saturated sodium chloride solution. The organic phases are combined, dried over ⁇ at ⁇ umsulf t and concentrated.
• a mixture of 4.28 g of magnesium powder and 50 ml of tetrahydrofuran is heated to 60 ° C. and then mixed with 0.30 ml of 1,2-di-bromethane for 2 minutes (visible exothermic reaction).
• a solution of 13.85 g A5, 1.6 ml 1,2-di-bromo-ethane and 130 ml tetrahydrofuran is added dropwise at 60-64 ° C. for 15 minutes.
• the mixture is stirred at reflux for a further 30 minutes and then cooled to room temperature.
• the reaction mixture is filtered clear under argon and the filtrate is cooled to -2 ° C. in a second reaction vessel.
• a mixture of 10.7 g magnesium powder and 120 ml tetrahydrofuran is heated to 60 ° C and then during 2 minutes by 0.74 ml of 1, 2-D ⁇ bromethan offset (visible exo ⁇ autothermal reaction).
• a solution of 34.6 g A5, 4.0 ml 1.2- Dibromoethane and 320 ml of tetrahydrofuran are added dropwise at 62-64 ° C. for 15 minutes.
• the mixture is 30 Mi ⁇ utes at reflux ger leads and then cooled to room temperature.
• reaction mixture is filtered under argon and the Grignard solution obtained for 10 minutes to a solution of 20.4 g of B4, 0.240 ml of N-methylpyrrolidone, 0.88 g of iron (III) acetylacetonate in 200 ml of tetrahydrofuran, at -5 ° to 0 ° C, dripped.
• the reaction mixture is stirred for a further 15 minutes at 0 ° C. and then mixed with 320 ml of 2N hydrochloric acid at 0 to 10 ° C.
• the compounds C3, C4 and C5 are produced by reacting the compound A5 with the compounds 37, B8 and B9.
• D1 can also be produced in an analogous manner from C3, C4 and C5.
• a mixture of 63.1 g DI, 39.0 g sodium azide and 450 ml tripropylene glycol and 150 ml water is stirred at 80 ° C. for 41 hours.
• the reaction mixture is cooled to room temperature and mixed with 30 ml of dimethylammo-1-propylamm and then stirred at room temperature for 3 hours.
• the reaction mixture is poured onto 750 ml of water and tert. -Butyl methyl ether (3x 750 ml) extracted.
• the organic phases are washed successively with 750 ml of 0.5N HCl, 750 ml of NaHCC (5 ⁇ - ⁇ g in water), water (3x 750 ml) and 750 ml of brine.
• the residue is mixed with 7.31 g of fumaric acid and dissolved in 200 ml of ethanol at 35 ° C. and filtered.
• the filtrate is concentrated to a total weight of 104 g and 1.7 l of acetonitrile are dissolved at 35.degree.
• the solution obtained is inoculated with 10 mg of the title compound (hemifumarate) and stirred at room temperature for 17 hours.
• the suspension is cooled to 0 ° C. and suction filtered after 2 hours.
• the residue is washed with acetonitrile (3 x 200 ml) and ge ⁇ anschliessen ⁇ dried at 35 ° C mm vacuum.

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  • 2000-07-13 DE DE50015330T patent/DE50015330D1/de not_active Expired - Lifetime
  • 2000-07-13 EP EP00940108A patent/EP1200390B1/de not_active Expired - Lifetime
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  • 2000-07-13 PT PT00940108T patent/PT1200390E/pt unknown
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• 2005
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