CN107151255A - Boric acid compound and its production and use - Google Patents

Boric acid compound and its production and use Download PDF

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Publication number
CN107151255A
CN107151255A CN201610125690.2A CN201610125690A CN107151255A CN 107151255 A CN107151255 A CN 107151255A CN 201610125690 A CN201610125690 A CN 201610125690A CN 107151255 A CN107151255 A CN 107151255A
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compound
added
solution
reaction
boric acid
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邵黎明
许玉龙
陈益宜
李炜
谢琼
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Fudan University
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Fudan University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/025Boronic and borinic acid compounds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B2200/00Indexing scheme relating to specific properties of organic compounds
    • C07B2200/07Optical isomers

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Abstract

The present invention relates to pharmaceutical chemistry and pharmacotherapeutics field.Specifically related to new boric acid compound and its production and use, more particularly to new substituted five-membered heterocyclic boronic acids class and substitution benzo five-ring heterocycles boric acid compound and preparation method thereof, substituted five-membered heterocyclic boronic acids class and substitution benzo five-ring heterocycles boric acid compound produced by the present invention such as formula is tested through bioactivity screening, as a result show, described compound has the function of protease inhibition body, can be further used for preparing treatment and the medicine of proteasome relevant disease.

Description

Boric acid compound and its production and use
Technical field
The present invention relates to pharmaceutical chemistry and pharmacotherapeutics field.Specifically related to new boric acid compound and preparation method thereof and use On the way, more particularly to new substituted five-membered heterocyclic boronic acids class and substitution benzo five-ring heterocycles boric acid compound and preparation method thereof and Prepare treatment and the application in proteasome relevant disease medicine.
Background technology
It is that eucaryon is thin prior art discloses Ubiquitin-proteasome path (Ubiquitin-Proteasome Pathway, abbreviation UPP) The main path of protein degradation in born of the same parents, can regulate and control to participate in the protein level of cell cycle control, maintain different cell processes Biological homeostasis.Studies have shown that is in most of mammalian cell, and the path can recognize and degrade false folding Protein;And it is demonstrated experimentally that cancer, the morbidity of cardiovascular and cerebrovascular disease and nerve degenerative diseases and Ubiquitin-proteasome Path has important contact.
Research is disclosed in Ubiquitin-proteasome path, and the proteinase complex 26S proteasomes of multi-catalytic are hydrolysis eggs White key component, is made up of two regulation particle 19S proteasomes and a cylindrical 20S proteasome;19S albumen Enzyme body is located at the two ends of 20S proteasomes, is made up of 18 subunits, controls protein substrate to enter 20S proteasome cavitys In identification, folding and transposition;20S proteasomes constitute 4 stacked rings by 28 subunits, wherein 7 different α are sub- Base (α 1- α 7) two exterior chambers of formation, 7 different center cavities of β subunits (the β 1- β 7) formation with proteolytic active sites Room;Three protein subunit hydrolysing activities in central lumen have been determined:There is the subunits of β 1 glutamy to turn hydrolase polypeptide activity (PGPH), beta 2 subunit base has trypsin-like activity (T-L), and beta 5 subunit has chymotrypsinlike activity (CT-L).
Millennium Pharmaceuticals had listed first proteasome inhibitor bortezomib in the U.S. in success in 2003, and it is used to treat Huppert's disease.The bortezomib is the reversible selective proteasome inhibitor of covalent type, main to suppress chymotrypsin sample Activity.The suppression that the successful exploitation of bortezomib demonstrates proteasome is a kind of effective therapeutic strategy;However, clinical data It has been shown that, bortezomib has more toxic side effect, for example, suffer from diarrhoea, vomit, Painful peripheral neuropathy becomes and blood platelet Reduce disease etc..So far, the mechanism of these toxic side effects is unclear;In addition, the Clinical practice of bortezomib needs weekly Intravenous injection twice or subcutaneous administrations scheme, great inconvenience is brought to patient.
Present situation based on prior art, present inventor intends providing new boric acid compound, further prepares toxic side effect Low, administration flexibly, novel protease body inhibitor that can be oral.
The content of the invention
It is an object of the invention to provide a kind of structure is novel and new boric acid compound with protease inhibition body function.
Another object of the present invention is to provide the preparation method of above-mentioned new boric acid compound.
Further object of the present invention is to provide above-mentioned new boric acid compound for preparing treatment and proteasome relevant disease Application in medicine.
In order to reach the purpose of the present invention, using following technical scheme:
The invention provides new boric acid compound, its structure shown in formula I,
Wherein:
X is C, O, S or NH;Y is CR, O, S or NH;
R is hydrogen, alkyl or aryl.
In some embodiments of the present invention, compound of formula I has following structure:
Wherein:
X is C, O, S or NH;Y is CR, O, S or NH;
R is hydrogen, alkyl or aryl.
In some embodiments of the present invention, compound is Formulas I-a S- enantiomters;
Wherein:
X is C, O, S or NH;Y is CR, O, S or NH;
R is hydrogen, alkyl or aryl.
In some embodiments of the present invention, Formulas I-a compounds have following structure:
Wherein:
X is O, S or NH;
R is hydrogen, alkyl or aryl.
In some embodiments of the present invention, compound is Formulas I-a-1 S- enantiomters;
Wherein:
X is O, S or NH;
R is hydrogen, alkyl or aryl.
In some embodiments of the present invention, Formulas I-a compounds have following structure:
Wherein:
Y is O, S or NH.
In some embodiments of the present invention, compound is Formulas I-a-2 S- enantiomters;
Wherein:
Y is O, S or NH.
The new boric acid compound that the present invention is provided, its structure also as shown in Formula II,
Wherein:
X is O, S or NH;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, Formula II compound has Formula II-a structures:
Wherein:
X is O, S or NH;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound is Formula II-a S- enantiomters;
Wherein:
X is O, S or NH;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, Formula II-a compounds have Formula II-a-1 structures:
Wherein:
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound is Formula II-a-1 S- enantiomters;
Wherein:
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, Formula II-a-1 compounds have Formula II-a-1-1, II-a-1-2, II-a-1-3, II-a-1-4 or II-a-1-5 structures:
Wherein:
R1、R2、R3、R4And R5For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound is Formula II-a-1-1, II-a-1-2, II-a-1-3, II-a-1-4 or II-a-1-5 S- enantiomters;
Wherein:
R1、R2、R3、R4And R5For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound has Formula II-a-1-3, II-a-1-4 or II-a-1-5 structures;
Wherein:
R3、R4And R5For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound is Formula II-a-1-3, II-a-1-4 or II-a-1-5 S- enantiomters;
Wherein:
R3、R4And R5For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound has Formula II-a-1-3 structures;
Wherein:
R3For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In some embodiments of the present invention, compound is Formula II-a-1-3 S- enantiomters;
Wherein:
R3For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
In the present invention,
Term " hydrocarbon " (no matter it is used alone or as a part for another group) refers to only include carbon atom (at most 14 carbon Atom) and hydrogen atom any structure;
Term " alkyl " is used for the saturated hydrocarbyl for representing straight or branched;
Term " aryl " is used to represent aromatic carbocyclyl groups, including monocyclic or polycyclic aromatic hydrocarbon;
Term " cycloalkyl " is used to represent non-aromatic carbocyclyl, includes the alkyl of cyclisation, cycloalkyl can include two rings or multi-loop system;
Term " alkoxy " is used to represent-O- alkyl groups;
Term " haloalkyl " is used to represent the alkyl that wherein one or more (including all) hydrogen atoms are substituted by halogen atom;
Term " halogen " is used to represent fluorine, chlorine, bromine and iodine;
Dotted line and thick line are used for the chemical constitution for representing one or more Stereocenters, indicate the absolute stereo at chemical constitution neutral body center Chemical constitution.
In the present invention, the key described in structure schema not represents preferably stereochemical structure;Containing in one or more solids The chemical constitution of the heart includes all possible stereoisomer form and its mixture.
In the present invention, term " inhibitor ", which is used for expression, can block or reduce enzyme, enzyme system, acceptor or other pharmacology The compound of target activity.
In the present invention, term " treatment " is used to represent to include reverse, mitigates or prevent the pathological state of clinical disease and correlation, To improve or stablize the situation of patient.
The invention provides the preparation method of described compound:
The compound of the present invention can be prepared by a variety of synthetic methods, and a part of raw material for preparing the compounds of this invention can So that from commercial reagents company, another part can then use concise conversion method well known in the art to prepare.
In the present invention, lead to the following synthetic route formula I of fruit compound, wherein, the substituent of compound of formula I has above Described meaning.The exemplary only explanation present invention of the synthetic method, and not it is limited to the invention.
The synthesis of Formulas I-a compounds:
Formula III -1 obtains formula III -2, formula III -2 and B (OCH under n-BuLi effects3)3Reaction obtains formula III -3, formula III -3 and III-4-a Formula III -5-a, formula III -5-a are obtained through ester exchange reaction to react with metal reagent i-BuMgBr, then through anhydrous ZnCl2It is catalyzed To formula III -6-a, formula III -6-a and LiN (SiMe3)2Reaction obtains formula III -7-a, formula III -7-a and is deprotected under HCl effects To formula III -8-a, formula III -8-a formula IV -2-a, the group that formula IV -2-a removings are connected with B are obtained with formula IV -1 through condensation reaction Obtain Formulas I-a.
Formulas I-a S- enantiomter compound synthesis:
Formula III -1 obtains formula III -2, formula III -2 and B (OCH under n-BuLi effects3)3Reaction obtains formula III -3, formula III -3 and III-4-b Formula III -5-b, formula III -5-b are obtained through ester exchange reaction to react with metal reagent i-BuMgBr, then through anhydrous ZnCl2It is catalyzed To formula III -6-b, formula III -6-b and LiN (SiMe3)2Reaction obtains formula III -7-b, formula III -7-b and is deprotected under HCl effects To formula III -8-b, formula III -8-b formula IV -2-b, the group that formula IV -2-b removings are connected with B are obtained with formula IV -1 through condensation reaction Obtain Formulas I-a S- enantiomters.
The compound of the Formula II prepared in the present invention by a variety of synthetic methods, wherein, one for preparing the compound Raw material is divided to derive from commercial reagents company, another part can then use concise conversion method well known in the art to prepare.
Formula II compounds press following synthetic routes, wherein, the substituent of Formula II compound has previously described meaning. The exemplary only explanation present invention of the synthetic method, and not it is limited to the invention.
Synthesis type II-a compounds:
Formula III -1 obtains formula III -2, formula III -2 and B (OCH under n-BuLi effects3)3Reaction obtains formula III -3, formula III -3 and III-4-a Formula III -5-a, formula III -5-a are obtained through ester exchange reaction to react with metal reagent i-BuMgBr, then through anhydrous ZnCl2It is catalyzed To formula III -6-a, formula III -6-a and LiN (SiMe3)2Reaction obtains formula III -7-a, formula III -7-a and is deprotected under HCl effects Formula V -2-a is obtained through condensation reaction with Formula V -1 to formula III -8-a, formula III -8-a, the group that Formula V -2-a removings are connected with B is obtained To Formula II-a.
Synthesis type II-a S- enantiomter compounds:
Formula III -1 obtains formula III -2, formula III -2 and B (OCH under n-BuLi effects3)3Reaction obtains formula III -3, formula III -3 and III-4-b Formula III -5-b, formula III -5-b are obtained through ester exchange reaction to react with metal reagent i-BuMgBr, then through anhydrous ZnCl2It is catalyzed To formula III -6-b, formula III -6-b and LiN (SiMe3)2Reaction obtains formula III -7-b, formula III -7-b and is deprotected under HCl effects Formula V -2-b is obtained through condensation reaction with Formula V -1 to formula III -8-b, formula III -8-b, the group that Formula V -2-b removings are connected with B is obtained To Formula II-a S- enantiomters.
More specifically,
The invention provides the method for preparing compound of formula I, wherein the substituent of the compound has previously described meaning;It is wrapped Include:
1, synthesis type I-a compounds:
1) compound of the structure of formula III -1 reacts the organolithium intermediate obtained shown in formula III -2 under the conditions of -110 DEG C with n-BuLi;
2) compound of the structure of formula III -2 under the conditions of -110 DEG C with B (OCH3)3Reaction obtains the trimethyl borate structure shown in III-3;
3) compound of the structure of formula III -3 carries out ester exchange reaction with the chiral pinane diol shown in formula III -4-a and obtained at ambient temperature To the boric acid ester structure shown in III-5-a;
4) compound of formula III -5-a structures is first reacted under the conditions of -78 DEG C with metal reagent i-BuMgBr, afterwards again at ambient temperature Through anhydrous ZnCl2Catalysis obtains the boric acid ester structure shown in III-6-a;
5.) compound of formula III -6-a structures under the conditions of -78 DEG C with LiN (SiMe3)2Reaction obtains double (front threes shown in formula III -7-a Base silicon) protection aminoboronic acid ester structure;
6) compound of formula III -7-a structures obtains formula III -8-a under the conditions of -78 DEG C with HCl effect removing double (trimethyl silicanes) protection Shown unshielded aminoboronic acid ester hydrochloride structure;
7) compound of the compound of formula III -8-a structures and the structure of formula IV -1 is in condensing agent 1- (3- dimethylamino-propyls) -3- ethyl carbon Diimmonium salt hydrochlorate (being abbreviated as EDCHCl) and 1- hydroxy benzo triazoles (being abbreviated as HOBt) react under conditions of existing to be obtained Boric acid ester structure shown in formula IV -2-a;
8) compound of formula IV -2-a structures is obtained shown in Formulas I-a with 2- methyl-propyls boric acid generation ester exchange reaction at ambient temperature Target boronic acid compounds;
2, synthesis type I-a S- enantiomter compounds:
1) compound of the structure of formula III -1 reacts the organolithium intermediate obtained shown in formula III -2 under the conditions of -110 DEG C with n-BuLi;
2) compound of the structure of formula III -2 under the conditions of -110 DEG C with B (OCH3)3Reaction obtains the trimethyl borate structure shown in III-3;
3) compound of the structure of formula III -3 carries out ester exchange reaction with the chiral pinane diol shown in formula III -4-b and obtained at ambient temperature Boric acid ester structure shown in III-5-b;
4) compound of formula III -5-b structures is first reacted under the conditions of -78 DEG C with metal reagent i-BuMgBr, rear again in room temperature condition It is lower through anhydrous ZnCl2Catalysis obtains the boric acid ester structure shown in III-6-b;
5) compound of formula III -6-b structures under the conditions of -78 DEG C with LiN (SiMe3)2Reaction obtains double (front threes shown in formula III -7-b Base silicon) protection aminoboronic acid ester structure;
6) compound of formula III -7-b structures obtains formula III -8-b under the conditions of -78 DEG C with HCl effect removing double (trimethyl silicanes) protection Shown unshielded aminoboronic acid ester hydrochloride structure;
7) compound of the compound of formula III -8-b structures and the structure of formula IV -1 is in condensing agent 1- (3- dimethylamino-propyls) -3- ethyls carbon two Reaction obtains formula under conditions of inferior amine salt hydrochlorate (being abbreviated as EDCHCl) and 1- hydroxy benzo triazoles (being abbreviated as HOBt) are present Boric acid ester structure shown in IV-2-b;
8) S- that ester exchange reaction obtains Formulas I-a occurs with 2- methyl-propyls boric acid at ambient temperature for the compound of formula IV -2-b structures Enantiomter target boronic acid compounds.
And,
The invention provides the method for formula II compounds, wherein the substituent of the compound has previously described meaning; It includes:
Synthesis type II-a compounds:
1) compound of the structure of formula III -1 reacts the organolithium intermediate obtained shown in formula III -2 under the conditions of -110 DEG C with n-BuLi;
2) compound of the structure of formula III -2 under the conditions of -110 DEG C with B (OCH3)3Reaction obtains the trimethyl borate structure shown in III-3;
3) compound of the structure of formula III -3 carries out ester exchange reaction with the chiral pinane diol shown in formula III -4-a and obtained at ambient temperature To the boric acid ester structure shown in III-5-a;
4) compound of formula III -5-a structures is first reacted under the conditions of -78 DEG C with metal reagent i-BuMgBr, rear again in room temperature condition It is lower through anhydrous ZnCl2Catalysis obtains the boric acid ester structure shown in III-6-a;
5) compound of formula III -6-a structures under the conditions of -78 DEG C with LiN (SiMe3)2Reaction obtains double (trimethyls shown in formula III -7-a Silicon) protection aminoboronic acid ester structure;
6) compound of formula III -7-a structures obtains formula III -8-a institutes under the conditions of -78 DEG C with HCl effect removing double (trimethyl silicanes) protection The unshielded aminoboronic acid ester hydrochloride structure shown;
7) compound of the compound of formula III -8-a structures and the structure of Formula V -1 is in condensing agent 1- (3- dimethylamino-propyls) -3- ethyls carbon two Reaction obtains formula under conditions of inferior amine salt hydrochlorate (being abbreviated as EDCHCl) and 1- hydroxy benzo triazoles (being abbreviated as HOBt) are present Boric acid ester structure shown in V-2-a;
8) compound of Formula V -2-a structures is obtained shown in Formula II-a with 2- methyl-propyls boric acid generation ester exchange reaction at ambient temperature Target boronic acid compounds;
And, synthesis type II-a S- enantiomter compounds:
1) compound of the structure of formula III -1 reacts the organolithium intermediate obtained shown in formula III -2 under the conditions of -110 DEG C with n-BuLi;
2) compound of the structure of formula III -2 under the conditions of -110 DEG C with B (OCH3)3Reaction obtains the trimethyl borate structure shown in III-3;
3) compound of the structure of formula III -3 carries out ester exchange reaction with the chiral pinane diol shown in formula III -4-b and obtained at ambient temperature Boric acid ester structure shown in III-5-b;
4) compound of formula III -5-b structures is first reacted under the conditions of -78 DEG C with metal reagent i-BuMgBr, rear again in room temperature condition It is lower through anhydrous ZnCl2Catalysis obtains the boric acid ester structure shown in III-6-b;
5) compound of formula III -6-b structures under the conditions of -78 DEG C with LiN (SiMe3)2Reaction obtains double (front threes shown in formula III -7-b Base silicon) protection aminoboronic acid ester structure;
6) compound of formula III -7-b structures obtains formula III -8-b under the conditions of -78 DEG C with HCl effect removing double (trimethyl silicanes) protection Shown unshielded aminoboronic acid ester hydrochloride structure;
7) compound of the compound of formula III -8-b structures and the structure of Formula V -1 is in condensing agent 1- (3- dimethylamino-propyls) -3- ethyls carbon two Reaction obtains formula under conditions of inferior amine salt hydrochlorate (being abbreviated as EDCHCl) and 1- hydroxy benzo triazoles (being abbreviated as HOBt) are present Boric acid ester structure shown in V-2-b;
8) compound of Formula V -2-b structures obtains Formula II-a's with 2- methyl-propyls boric acid generation ester exchange reaction at ambient temperature S- enantiomter target boronic acid compounds.
The present invention shows that obtained Formulas I and II compounds has good proteasome inhibition activity, portion through pharmaceutical research Differentiation compound shows good proteasome inhibition activity under nanomolar range, can further prepare proteasome inhibitor use In treatment and proteasome relevant disease.
Embodiment
The present invention is further illustrated with reference to embodiments, but these embodiments are not limit the scope of the invention.
In the experiment of the present invention, commercial reagents company can be derived from for preparing a part of raw material of the compounds of this invention, it is another Part can then use concise conversion method well known in the art to prepare;Compound structure is joined by nuclear magnetic resonance (NMR) and liquid matter Determined with (LCMS);.NMR, which is determined, uses Varian 400MHz NMRs, and measure reagent is CDCl3、CD3OD And DMSO-d6, TMS is inside designated as, chemical shift (δ) is in units of ppm;LCMS is determined using Agilent Technologies 6120 LC-MS instrument;Column chromatography uses pressure preparative chromatograph in YAMAZEN AI-580S to carry out product purification.
Embodiment 1:The preparation of dichloromethylene lithium (compound III-2)
LiCHCl2
(III-2)
Under nitrogen protective condition, anhydrous methylene chloride (4.6mL, 72mmol), temperature drop are added into 200mL anhydrous tetrahydro furans To -110 DEG C, it is added dropwise after 1.6M n-BuLi hexane solution (38mL, 60mmol), completion of dropping, continues at -110 DEG C dropwise At a temperature of stir 1 hour;Reaction solution is not purified to be directly used in the next step.
Embodiment 2:The preparation of dichloromethylene trimethyl borate (compound III-3)
Under nitrogen protective condition, temperature continues to control at -110 DEG C, is added in the compound III-2 solution prepared to embodiment 1 Trimethylborate (8mL, 72mmol), continues to stir at a temperature of -110 DEG C 1 hour, then adds 5N HCl solution 12mL, Reaction is slowly warmed to room temperature, and reaction solution is transferred in separatory funnel, separates organic phase, and aqueous phase extracts (3 × 10mL) using ether, Merge organic phase, add anhydrous sodium sulfate drying, dry and filtered after finishing, using Rotary Evaporators except solvent obtains white solid 8.7g, yield 92%.Reaction product is not purified to be directly used in the next step.
Embodiment 3:The preparation of (+)-australene alkane glycol (compound III-4-a)
Under nitrogen protective condition, Me is added into the 100mL tert-butyl alcohols3NO·2H2O (11g, the 102mmol) aqueous solution, stirring Under sequentially add (+)-australene (15mL, 97mmol), pyridine (7mL) and osmium tetroxide (51mg, 0.2mmol), then heat up To flowing back, TLC detections display reaction is complete after 24 hours, and room temperature is down in reaction, adds NaHSO3(1.2g, 12mmol) Stirring 1 hour, reaction solution is transferred in separatory funnel, separates organic phase, and aqueous phase is merged using ether extraction (3 × 20mL) Organic phase, adds anhydrous sodium sulfate drying, dries and is filtered after finishing, solvent, column chromatography for separation (stone are removed using Rotary Evaporators Oily ether:Ethyl acetate=30:1) white solid 15g, yield 91% are obtained.
Embodiment 4:The preparation of dichloromethylene boric acid-(+)-australene alkane diol ester (compound III-5-a)
The compound III-3 (10g, 63mmol) of embodiment 2 and the compound of embodiment 3 are added into 150mL anhydrous tetrahydro furans III-4-a (7.2g, 42mmol), is stirred at room temperature, and TLC detections display reaction is complete after 18 hours, using Rotary Evaporators except molten Agent, column chromatography for separation (petroleum ether:Ethyl acetate=10:1) colourless oil liquid 10g, yield 91% are obtained.1H NMR(CDCl3, 400MHz) δ 5.39 (s, 1H), 4.46 (d, 1H, J=8.8Hz), 2.33 (m, 2H), 2.12 (t, 1H, J=5.2Hz), 1.94 (m, 2H), 1.46 (s, 3H), 1.30 (s, 3H), 1.21 (d, 1H, J=11.2Hz), 0.84 (s, 3H).
Embodiment 5:The preparation of 2- methyl -4- chloro- butyl boron dihydroxide-(+)-australene alkane diol ester (compound III-6-a)
Under nitrogen protective condition, the compound III-5 (10g, 38mmol) of embodiment 4, temperature drop are added into 100mL absolute ethers To -78 DEG C, it is added dropwise dropwise after 2M selenium alkynide diethyl ether solution (17mL, 33mmol), completion of dropping, adds drying ZnCl2Powder, reaction is slowly warmed to room temperature, and TLC detections display reaction is complete after 20 hours, is filtered to remove solid, profit Solvent, column chromatography for separation (petroleum ether are removed with Rotary Evaporators:Ethyl acetate=200:1) colourless oil liquid 7.6g, yield are obtained 81%.1H NMR(CDCl3, 400MHz) δ 4.36 (d, 1H, J=9.1Hz), 3.52 (m, 1H), 2.35 (m, 1H), 2.24 (m, 1H), 2.08 (t, 1H, J=5.4Hz), 1.92 (m, 2H), 1.87 (d, 1H, J=1.6Hz), 1.79 (m, 1H), 1.62 (m, 1H), 1.41 (s, 3H), 1.29 (s, 3H), 1.18 (d, 1H, J=11.0Hz), 0.92 (d, 3H, J=6.6Hz), 0.90 (d, 3H, J=6.6Hz), 0.84 (s, 3H)。
Embodiment 6:The preparation of 2- methyl -4- Amino-butyls boric acid-(+)-australene alkane glycol ester hydrochloride (compound III-8-a)
Under nitrogen protective condition, the compound III-6-a (4.5g, 16mmol) of embodiment 5 is added into 100mL anhydrous tetrahydro furans, Temperature is down to -78 DEG C, and 1M LiN (SiMe are added dropwise dropwise3)2After tetrahydrofuran solution (24mL, 24mmol), completion of dropping, Reaction is slowly warmed to room temperature, and TLC detections display reaction is complete after 24 hours, removes solvent using Rotary Evaporators, adds 50mL N-hexane dissolution, is filtered to remove solid, and filtrate temperature is down to -78 DEG C, adds 2M HCl diethyl ether solutions (24mL, 48mmol), Reaction is slowly warmed to room temperature, and a large amount of white solids occurs, is filtered and is washed with ether, obtains white solid 3.2g, yield 66%.1H NMR(DMSO-d6,400MHz)δ7.84(s,3H),7.41(s,1H),7.29(s,1H),7.16(s,1H),4.44(m, 1H), 2.74 (m, 1H), 2.32 (m, 1H), 2.18 (m, 1H), 1.99 (t, 1H, J=5.5Hz), 1.88 (m, 1H), 1.73 (m, 2H), 1.47 (m, 2H), 1.35 (s, 3H), 1.24 (s, 3H), 1.11 (d, 1H, J=10.8Hz), 0.86 (d, 6H, J=6.5Hz), 0.81 (s, 3H)。
Embodiment 7:The preparation of (-)-australene alkane glycol (compound III-4-b)
Under nitrogen protective condition, Me3NO2H is added into the 100mL tert-butyl alcohols2O (11g, the 102mmol) aqueous solution, stirring Under sequentially add (-)-australene (15mL, 97mmol), pyridine (7mL) and osmium tetroxide (51mg, 0.2mmol), then heat up To flowing back, TLC detections display reaction is complete after 20 hours, and room temperature is down in reaction, adds NaHSO3(1.2g, 12mmol) Stirring 1 hour, reaction solution is transferred in separatory funnel, separates organic phase, and aqueous phase is merged using ether extraction (3 × 20mL) Organic phase, adds anhydrous sodium sulfate drying, dries and is filtered after finishing, solvent, column chromatography for separation (stone are removed using Rotary Evaporators Oily ether:Ethyl acetate=30:1) white solid 14g, yield 85% are obtained.
Embodiment 8:The preparation of dichloromethylene boric acid-(-)-australene alkane diol ester (compound III-5-b)
The compound III-3 (10g, 63mmol) of embodiment 2 and the compound of embodiment 7 are added into 150mL anhydrous tetrahydro furans III-4-b (7.2g, 42mmol), is stirred at room temperature, and TLC detections display reaction is complete after 23 hours, is removed using Rotary Evaporators Solvent, column chromatography for separation (petroleum ether:Ethyl acetate=10:1) colourless oil liquid 9g, yield 81% are obtained.1H NMR(CDCl3, 400MHz) δ 5.39 (s, 1H), 4.46 (d, 1H, J=8.7Hz), 2.33 (m, 2H), 2.12 (t, 1H, J=5.4Hz), 1.94 (m, 2H), 1.46 (s, 3H), 1.30 (s, 3H), 1.20 (d, 1H, J=11.2Hz), 0.84 (s, 3H).
Embodiment 9:The preparation of 2- methyl -4- chloro- butyl boron dihydroxide-(-)-australene alkane diol ester (compound III-6-b)
Under nitrogen protective condition, the compound III-5-b (10g, 38mmol) of embodiment 8, temperature are added into 100mL absolute ethers - 78 DEG C are down to, is added dropwise dropwise after 2M selenium alkynide diethyl ether solution (17mL, 33mmol), completion of dropping, is added dry Dry ZnCl2Powder, reaction is slowly warmed to room temperature, and TLC detections display reaction is complete after 22 hours, is filtered to remove solid, Solvent, column chromatography for separation (petroleum ether are removed using Rotary Evaporators:Ethyl acetate=200:1) colourless oil liquid 5.8g, production are obtained Rate 62%.1H NMR(CDCl3, 400MHz) and δ 4.36 (d, 1H, J=8.8Hz), 3.52 (m, 1H), 2.35 (m, 1H), 2.24 (m, 1H), 2.08 (t, 1H, J=5.4Hz), 1.91 (s, 2H), 1.87 (s, 1H), 1.79 (m, 1H), 1.61 (m, 1H), 1.41 (s, 3H), 1.29 (s, 3H), 1.18 (d, 1H, J=11.1Hz), 0.92 (d, 3H, J=6.6Hz), 0.90 (d, 3H, J=6.6Hz), 0.84 (s, 3H). Embodiment 10:The preparation of 2- methyl -4- Amino-butyls boric acid-(-)-australene alkane glycol ester hydrochloride (compound III-8-b)
Under nitrogen protective condition, the compound III-6-b (4.5g, 16mmol) of embodiment 9 is added into 100mL anhydrous tetrahydro furans, Temperature is down to -78 DEG C, and 1M LiN (SiMe are added dropwise dropwise3)2After tetrahydrofuran solution (24mL, 24mmol), completion of dropping, Reaction is slowly warmed to room temperature, and TLC detections display reaction is complete after 18 hours, removes solvent using Rotary Evaporators, adds 50mL N-hexane dissolution, is filtered to remove solid, and filtrate temperature is down to -78 DEG C, adds 2M HCl diethyl ether solutions (24mL, 48mmol), Reaction is slowly warmed to room temperature, and a large amount of white solids occurs, is filtered and is washed with ether, obtains white solid 4.1g, yield 85%.1H NMR(DMSO-d6,400MHz)δ7.85(s,3H),7.42(s,1H),7.29(s,1H),7.16(s,1H),4.45(d, 1H, J=8.3Hz), 2.76 (m, 1H), 2.32 (m, 1H), 2.20 (m, 1H), 2.00 (t, 1H, J=5.3Hz), 1.88 (s, 1H), 1.73 (m, 2H), 1.48 (t, 2H, J=7.3Hz), 1.36 (s, 3H), 1.25 (s, 3H), 1.11 (dd, 1H, J=5.5Hz, J=10.6Hz), 0.86 (d, 6H, J=4.8Hz), 0.82 (s, 3H).
Embodiment 11:(R)-(1- (furans -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound I-1)
Under nitrogen protective condition, furans -2- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 10 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 3 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) colorless solid 11mg, yield 44% are obtained.1H NMR(CD3OD, 400MHz) δ 7.85 (s, 1H), 7.39 (s, 1H), 6.70 (s, 1H), 2.83 (t, 1H, J=7.3Hz), 1.74 (m, 1H), 1.42 (t, 2H, J=7.3Hz), 0.94 (d, 6H, J=6.6Hz) .MS (ESI) m/z 224.0 [M-H]-,252.0 [M+2CH2-H]-.。
Embodiment 12:(R)-(3- methyl isophthalic acids-(thiophene-2-carboxamide derivatives base) butyl) preparation of boric acid (compound I-2)
Under nitrogen protective condition, thiophene -2-carboxylic acid (14mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 13 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 5 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) colorless solid 15mg, yield 57% are obtained.1H NMR(CD3OD, 400MHz) δ 8.01 (d, 1H, J=3.8Hz), 7.92 (d, 1H, J=4.9Hz), 7.25 (t, 1H, ), J=4.4Hz (d, 6H, the J=5.6Hz) .MS of 2.84 (t, 1H, J=7.6Hz), 1.76 (m, 1H), 1.43 (t, 2H, J=7.3Hz), 0.95 (ESI)m/z 240.0[M-H]-,268.0[M+2CH2-H]-.。
Embodiment 13:(R)-(3- methyl isophthalic acids-(1H- pyrroles -2- formamidos) butyl) preparation of boric acid (compound I-3)
Under nitrogen protective condition, pyrroles -2- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 11 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 5 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=30:1) colorless solid 8mg, yield 32% are obtained.1H NMR(CD3OD, 400MHz) δ 7.11 (m, 2H), 6.29 (m, 1H), 2.76 (t, 1H, J=7.6Hz), 1.75 (m, 1H), 1.40 (t, 2H, J=7.3Hz), 0.95 (d, 6H, J=6.6Hz) .MS (ESI) m/z 223.1 [M-H]-,237.1[M+CH2-H]-, 251.0[M+2CH2-H]-.。
Embodiment 14:(R)-(1- (furans -3- the formamidos) -3- methyl butyls) preparation of boric acid (compound I-4)
Under nitrogen protective condition, furans -3- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 8 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 5 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=70:1) colorless solid 14mg, yield 57% are obtained.1H NMR(CD3OD, 400MHz) δ 8.35 (s, 1H), 7.70 (s, 1H), 6.95 (s, 1H), 2.78 (t, 1H, J=7.5Hz), 1.74 (m, 1H), 1.40 (t, 2H, J=7.3Hz), 0.96 (d, 6H, J=6.6Hz) .MS (ESI) m/z 224.0 [M-H]-,237.9 [M+CH2-H]-,252.0[M+2CH2-H]-.。
Embodiment 15:(R)-(3- methyl isophthalic acids-(thiophene -3- formamidos) butyl) preparation of boric acid (compound I-5)
Under nitrogen protective condition, thiophene -3- formic acid (14mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 10 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 4 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) colorless solid 12mg, yield 45% are obtained.1H NMR(CD3OD, 400MHz) δ 8.43 (d, 1H, J=2.5Hz), 7.63 (m, 2H), 2.82 (t, 1H, J=7.6Hz), 1.77 (m, 1H), 1.42 (t, 2H, J=7.3Hz), 0.96 (d, 6H, J=6.5Hz) .MS (ESI) m/z 240.0 [M-H]-,253.9[M+ CH2-H]-,268.0[M+2CH2-H]-.。
Embodiment 16:(R)-(3- methyl isophthalic acids-(the 1H- pyrrole-3-carboxamides base) butyl) preparation of boric acid (compound I-6)
Under nitrogen protective condition, pyrroles -3- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 11 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 5 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=30:1) colorless solid 18mg, yield 73% are obtained.1H NMR(CD3OD, 400MHz) δ 7.58 (s, 1H), 6.84 (s, 1H), 6.69 (s, 1H), 2.73 (t, 1H, J=7.4Hz), 1.76 (m, 1H), 1.38 (t, 2H, J=7.1Hz), 0.95 (d, 6H, J=6.5Hz) .MS (ESI) m/z 223.0 [M-H]-,237.0 [M+CH2-H]-,251.0[M+2CH2-H]-.。
Embodiment 17:(S)-(1- (furans -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound I-1 S- enantiomters)
Under nitrogen protective condition, furans -2- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-b (50mg, 0.17mmol) of embodiment 10 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 9 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 5 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) colorless solid 13mg, yield 53% are obtained.1H NMR(CD3OD, 400MHz) δ 7.85 (s, 1H), 7.38 (d, 1H, J=3.0Hz), 6.70 (s, 1H), 2.83 (t, 1H, ), J=7.5Hz [the M- of 1.74 (m, 1H), 1.42 (t, 2H, J=7.4Hz), 0.95 (d, 6H, J=6.5Hz) .MS (ESI) m/z 224.1 H]-,252.0[M+2CH2-H]-.。
Embodiment 18:(S)-(3- methyl isophthalic acids-(thiophene-2-carboxamide derivatives base) butyl) preparation of boric acid (compound I-2 S- enantiomters)
Under nitrogen protective condition, thiophene -2-carboxylic acid (14mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-b (50mg, 0.17mmol) of embodiment 10 and DIPEA (0.04mL, 0.22mmol), 11 hours are added afterwards TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 4 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) colorless solid 6mg, production are obtained Rate 23%.1H NMR(CD3OD,400MHz)δ8.00(s,1H),7.92(m,1H),7.25(s,1H),2.84(t,1H, ), J=7.0Hz [the M- of 1.75 (m, 1H), 1.42 (t, 2H, J=6.6Hz), 0.95 (d, 6H, J=6.3Hz) .MS (ESI) m/z 240.0 H]-,253.9[M+CH2-H]-,268.0[M+2CH2-H]-.。
Embodiment 19:(S)-(3- methyl isophthalic acids-(1H- pyrroles -2- formamidos) butyl) system of boric acid (compound I-3 S- enantiomters) It is standby
Under nitrogen protective condition, pyrroles -2- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-b (50mg, 0.17mmol) of embodiment 10 and DIPEA (0.04mL, 0.22mmol), 13 hours are added afterwards TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 7 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=30:1) colorless solid 11mg is obtained, Yield 45%.1H NMR(CD3OD, 400MHz) δ 7.11 (m, 2H), 6.29 (s, 1H), 2.76 (t, 1H, J=7.5Hz), 1.74 (m, 1H), 1.40 (t, 2H, J=4.6Hz), 0.95 (d, 6H, J=6.5Hz) .MS (ESI) m/z 223.0 [M-H]-,237.1[M+ CH2-H]-,251.0[M+2CH2-H]-.。
Embodiment 20:(S)-(1- (furans -3- the formamidos) -3- methyl butyls) preparation of boric acid (compound I-4 S- enantiomters)
Under nitrogen protective condition, furans -3- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-b (50mg, 0.17mmol) of embodiment 10 and DIPEA (0.04mL, 0.22mmol), 13 hours are added afterwards TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 5 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=70:1) colorless solid 10mg is obtained, Yield 40%.1H NMR(CD3OD,400MHz)δ8.35(s,1H),7.70(s,1H),6.95(s,1H),2.78(t,1H, ), J=7.5Hz [the M- of 1.74 (m, 1H), 1.40 (t, 2H, J=7.2Hz), 0.95 (d, 6H, J=6.5Hz) .MS (ESI) m/z 224.0 H]-,238.1[M+CH2-H]-,252.0[M+2CH2-H]-.。
Embodiment 21:(S)-(3- methyl isophthalic acids-(thiophene -3- formamidos) butyl) preparation of boric acid (compound I-5 S- enantiomters)
Under nitrogen protective condition, thiophene -3- formic acid (14mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-b (50mg, 0.17mmol) of embodiment 10 and DIPEA (0.04mL, 0.22mmol), 11 hours are added afterwards TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 5 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) colorless solid 15mg is obtained, Yield 57%.1H NMR(CD3OD, 400MHz) δ 8.42 (s, 1H), 7.63 (m, 2H), 2.81 (t, 1H, J=7.5Hz), 1.76 (m, 1H), 1.42 (t, 2H, J=7.4Hz), 0.96 (d, 6H, J=6.5Hz) .MS (ESI) m/z 240.0 [M-H]-,254.1[M+ CH2-H]-,268.0[M+2CH2-H]-.。
Embodiment 22:(R)-(3- methyl isophthalic acids-(the 1H- pyrrole-3-carboxamides base) butyl) system of boric acid (compound I-6 S- enantiomters) It is standby
Under nitrogen protective condition, pyrroles -3- formic acid (12mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-b (50mg, 0.17mmol) of embodiment 10 and DIPEA (0.04mL, 0.22mmol), 13 hours are added afterwards TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 6 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=30:1) colorless solid 11mg is obtained, Yield 45%.1H NMR(CD3OD,400MHz)δ7.57(s,1H),6.84(s,1H),6.68(s,1H),2.72(t,1H, ), J=7.5Hz [the M- of 1.75 (m, 1H), 1.58 (t, 2H, J=7.2Hz), 0.95 (d, 6H, J=5.7Hz) .MS (ESI) m/z 223.0 H]-,237.1[M+CH2-H]-,251.0[M+2CH2-H]-.。
Embodiment 23:(R)-(3- methyl isophthalic acids-(5- methylfuran -2- formamidos) butyl) preparation of boric acid (compound I-7)
Under nitrogen protective condition, 5- methylfuran -2- formic acid (14mg, 0.11mmol), room are added into 5mL anhydrous methylene chlorides Temperature stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 12 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 6 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) colorless solid 10mg is obtained, Yield 38%.1H NMR(CD3OD, 400MHz) δ 7.30 (d, 1H, J=3.3Hz), 6.34 (d, 1H, J=2.5Hz), 2.78 (t, 1H, J=7.5Hz), 2.42 (s, 3H), 1.74 (m, 1H), 1.40 (t, 2H, J=7.3Hz), 0.94 (d, 6H, J=6.4Hz) .MS (ESI) m/z 238.1[M-H]-,266.2[M+2CH2-H]-.。
Embodiment 24:(R)-(3- methyl isophthalic acids-(5- benzofurane -2- formamidos) butyl) preparation of boric acid (compound I-8)
Under nitrogen protective condition, 5- benzofurane -2- formic acid (21mg, 0.11mmol), room are added into 5mL anhydrous methylene chlorides Temperature stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 15 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 5 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=70:1) faint yellow solid 17mg is obtained, Yield 51%.1H NMR(CD3OD, 400MHz) δ 7.90 (d, 2H, J=7.2Hz), 7.43 (m, 4H), 7.04 (d, 1H, ), J=3.7Hz (d, 6H, the J=4.6Hz) .MS of 2.86 (t, 1H, J=7.5Hz), 1.79 (m, 1H), 1.46 (t, 2H, J=7.2Hz), 0.97 (ESI)m/z 300.1[M-H]-,314.2[M+CH2-H]-,328.1[M+2CH2-H]-.。
Embodiment 25:(R)-(3- methyl isophthalic acids-(5- methylthiophene -2- formamidos) butyl) preparation of boric acid (compound I-9)
Under nitrogen protective condition, 5- methylthiophene -2- formic acid (16mg, 0.11mmol), room are added into 5mL anhydrous methylene chlorides Temperature stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 12 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 3 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) colorless solid 11mg is obtained, Yield 39%.1H NMR(CD3OD, 400MHz) δ 7.81 (d, 1H, J=3.7Hz), 6.95 (d, 1H, J=2.9Hz), 2.80 (t, 1H, J=7.4Hz), 2.57 (s, 3H), 1.75 (m, 1H), 1.40 (t, 2H, J=7.2Hz), 0.95 (d, 6H, J=6.5Hz) .MS (ESI) m/z 254.1[M-H]-,268.1[M+CH2-H]-,282.1[M+2CH2-H]-.。
Embodiment 26:(R)-(3- methyl isophthalic acids-(5- tolylthiophene -2- formamidos) butyl) preparation of boric acid (compound I-10)
Under nitrogen protective condition, 5- tolylthiophene -2- formic acid (22mg, 0.11mmol), room are added into 5mL anhydrous methylene chlorides Temperature stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 12 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 5 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) faint yellow solid 9mg is obtained, Yield 26%.1H NMR(CD3OD, 400MHz) δ 7.98 (d, 1H, J=4.0Hz), 7.73 (d, 2H, J=7.0Hz), 7.54 (d, 1H, J=4.0Hz), 7.43 (m, 3H), 2.86 (t, 1H, J=7.5Hz), 1.77 (m, 1H), 1.44 (t, 2H, J=7.2Hz), 0.97 (d, 6H, J=6.4Hz) .MS (ESI) m/z 316.2 [M-H]-,330.1[M+CH2-H]-,344.0[M+2CH2-H]-.。
Embodiment 27:(R)-(3- methyl isophthalic acids-(the 5- methyl isophthalic acid H- pyrroles -2- formamidos) butyl) preparation of boric acid (compound I-11)
Under nitrogen protective condition, 5- methylpyrrole -2- formic acid (14mg, 0.11mmol), room are added into 5mL anhydrous methylene chlorides Temperature stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 15 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 5 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) colorless solid 16mg is obtained, Yield 61%.1H NMR(CD3OD, 400MHz) δ 6.79 (d, 1H, J=3.4Hz), 5.78 (d, 1H, J=3.5Hz), 2.51 (t, 1H, J=7.3Hz), 2.07 (s, 3H), 1.51 (m, 1H), 1.16 (t, 2H, J=7.1Hz), 0.73 (d, 6H, J=6.3Hz) .MS (ESI) m/z 237.1[M-H]-,251.1[M+CH2-H]-,265.1[M+2CH2-H]-.。
Embodiment 28:The preparation of 5- bromine pyrroles's -2- Ethyl formates
Pyrroles -2- Ethyl formates (1g, 7.2mmol) are added into 20mL tetrahydrofurans and 10mL methanol mixed solvents, temperature is down to 0 DEG C, NBS (0.6g, 3.6mmol) is added, continues 0 DEG C of stirring, TLC detections display reaction is complete after 2 hours, utilizes rotation Turn evaporimeter except solvent, column chromatography for separation (petroleum ether:Ethyl acetate=100:1) product 170mg, yield 22% are obtained.1H NMR (CDCl3, 400MHz) δ 9.23 (s, 1H), 6.82 (m, 1H), 6.21 (m, 1H), 4.32 (q, 2H, J=7.1Hz), 1.35 (t, 3H, J=7.1Hz) .MS (ESI) m/z 220.1 [M+H]+.
The preparation of 5- phenylpyrrole -2- Ethyl formates
5- bromine pyrroles -2- Ethyl formates (170mg, 0.8mmol) are added into 5mL toluene and 1mL water mixed solvents, are stirred at room temperature, Add Na2CO3(170mg, 1.6mmol), then sequentially adds Pd (PPh3)4(92mg, 0.08mmol) and phenylboric acid (146mg, 1.2mmol), is warming up to backflow, and TLC detections display reaction is complete after 2 hours, adds water dilution, will react Liquid is transferred in separatory funnel, separates organic phase, and aqueous phase profit is extracted with ethyl acetate (3 × 5mL), merges organic phase, adds nothing Aqueous sodium persulfate is dried, and is dried and is filtered after finishing, solvent, column chromatography for separation (petroleum ether are removed using Rotary Evaporators:Ethyl acetate =80:1) product 130mg, yield 75% are obtained.1H NMR(CDCl3,400MHz)δ9.31(s,1H),7.57(d,2H, J=7.2Hz), 7.42 (t, 2H, J=7.4Hz), 7.32 (d, 1H, J=7.3Hz), 6.97 (s, 1H), 6.55 (s, 1H), 4.36 (q, 2H, ), J=7.1Hz 1.39 (t, 3H, J=7.1Hz) .MS (ESI) m/z 216.1 [M+H]+,238.1[M+Na]+.
The preparation of 5- phenylpyrrole -2- formic acid
Added into 1mL tetrahydrofurans, 0.5mL methanol and 0.5mL water mixed solvents 5- phenylpyrrole -2- Ethyl formates (20mg, 0.09mmol), it is stirred at room temperature, adds LiOH (4mg, 0.18mmol), TLC detections display reaction after 2 hours is stirred at room temperature Completely, solvent is removed using Rotary Evaporators, frozen water is added into reaction residual, then add 1M HCl solution acidifying, It is filtrated to get product 10mg, yield 59%.1H NMR(CDCl3,400MHz)δ9.37(s,1H),7.59(d,2H, ), J=7.5Hz 7.43 (t, 2H, J=7.4Hz), 7.33 (t, 1H, J=7.2Hz), 7.11 (s, 1H), 6.59 (s, 1H) .MS (ESI) m/z 186.1[M-H]-.
(R)-(3- methyl isophthalic acids-(5- phenyl -1H- pyrroles -2- formamidos) butyl) preparation of boric acid (compound I-12)
Under nitrogen protective condition, 5- phenylpyrrole -2- formic acid (21mg, 0.11mmol), room are added into 5mL anhydrous methylene chlorides Temperature stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 16 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 6 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=30:1) yellow solid 13mg is obtained, Yield 39%.1H NMR(CD3OD, 400MHz) δ 7.64 (d, 2H, J=7.2Hz), 7.36 (t, 2H, J=7.7Hz), 7.23 (m, 1H), 6.83 (d, 1H, J=3.8Hz), 6.51 (d, 1H, J=3.8Hz), 3.36 (t, 1H, J=7.4Hz), 1.66 (m, 1H), 1.49 (t, 2H, J=7.1Hz), 0.95 (d, 6H, J=6.6Hz) .MS (ESI) m/z 299.2 [M-H]-,313.1[M+CH2-H]-,327.0 [M+2CH2-H]-.。
Embodiment 29:(R)-(1- (benzofuran-2-carboxamides the base) -3- methyl butyls) preparation of boric acid (compound II-1)
Under nitrogen protective condition, coumarilic acid (18mg, 0.11mmol), room temperature are added into 5mL anhydrous methylene chlorides Stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 8 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 5 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=60:1) faint yellow solid 15mg is obtained, Yield 50%.1H NMR(CD3OD, 400MHz) δ 7.75 (m, 2H), 7.62 (d, 1H, J=8.4Hz), 7.52 (t, 1H, ), J=7.7Hz 7.35 (t, 1H, J=7.5Hz), 2.94 (t, 1H, J=7.6Hz) 1.77 (m, 1H), 1.48 (t, 2H, J=7.3Hz), 0.96 (d, 6H, J=6.6Hz) .MS (ESI) m/z 274.2 [M-H]-,302.1[M+2CH2-H]-.。
Embodiment 30:(R)-(1- (benzothiophene -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound II-2)
Under nitrogen protective condition, benzothiophene -2- formic acid (20mg, 0.11mmol), room temperature are added into 5mL anhydrous methylene chlorides Stirring, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, Then the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), 10 hours are added TLC detections display reaction is complete afterwards, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3 Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes rotary evaporation Instrument removes solvent, and products therefrom is added directly into 5mL methanol, is stirred at room temperature, addition 2- methyl-propyls boric acid (22mg, 0.22mmol) with 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC is examined after 4 hours Survey display reaction complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate drying, drying is finished After filter, using Rotary Evaporators remove solvent, column chromatography for separation (dichloromethane:Methanol=50:1) faint yellow solid 17mg is obtained, Yield 53%.1H NMR(CD3OD,400MHz)δ8.25(s,1H),7.96(m,2H),7.50(m,2H),2.91(t,1H, ), J=7.6Hz [the M- of 1.78 (m, 1H), 1.47 (t, 2H, J=7.3Hz), 0.97 (d, 6H, J=6.6Hz) .MS (ESI) m/z 290.1 H]-,304.1[M+CH2-H]-,318.1[M+2CH2-H]-.。
Embodiment 31:(R)-(1- (1H- indole 2-carboxamides the base) -3- methyl butyls) preparation of boric acid (compound II-3)
Under nitrogen protective condition, indole-2-carboxylic acid (18mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, is stirred at room temperature, HOBt (18mg, 0.13mmol) is added, continues to add EDCHCl (25mg, 0.13mmol) after stirring 10 minutes, so The compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is added afterwards, after 15 hours TLC detection display reactions are complete, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3It is molten Liquid and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, utilizes Rotary Evaporators Except solvent, products therefrom is added directly into 5mL methanol, is stirred at room temperature, and adds 2- methyl-propyls boric acid (22mg, 0.22mmol) With 5mL n-hexanes, 1M HCl solution (0.33mL, 0.33mmol) is then added, TLC detections display is anti-after 6 hours Should be complete, reaction solution is stood to being layered, lower floor is washed with n-hexane, adds anhydrous sodium sulfate drying, dry and filtered after finishing, Solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=40:1) faint yellow solid 12mg, yield 40% are obtained.1H NMR(CD3OD, 400MHz) δ 7.65 (d, 1H, J=8.1Hz), 7.47 (d, 1H, J=8.4Hz), 7.42 (s, 1H), 7.30 (t, 1H, J=7.2Hz), 7.11 (t, 1H, J=7.2Hz), 2.86 (t, 1H, J=6.7Hz), 1.79 (m, 1H), 1.45 (t, 2H, J=7.1Hz), 0.98 (d, 6H, J=6.6Hz) .MS (ESI) m/z 273.2 [M-H]-,287.3[M+CH2-H]-,301.2[M+2CH2- H]-.。
Embodiment 32:(R)-(3- methyl isophthalic acids-(3- methyl benzofuran -2- formamidos) butyl) preparation of boric acid (compound II-4)
Under nitrogen protective condition, 3- methyl benzofuran -2- formic acid (19mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 12 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 5 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=60:1) obtain white Solid 16mg, yield 50%.1H NMR(CD3OD, 400MHz) δ 7.73 (d, 1H, J=7.9Hz), 7.53 (m, 2H), 7.36 (m, 1H), 2.84 (t, 1H, J=7.6Hz), 2.62 (s, 3H), 1.79 (m, 1H), 1.46 (t, 2H, J=7.3Hz), 0.97 (d, 6H, J=6.6Hz) .MS (ESI) m/z 288.2 [M-H]-,302.3[M+CH2-H]-,316.3[M+2CH2-H]-.。
Embodiment 33:(R)-(3- methyl isophthalic acids-(4- methyl benzofuran -2- formamidos) butyl) preparation of boric acid (compound II-5)
Under nitrogen protective condition, 4- methyl benzofuran -2- formic acid (19mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 11 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 3 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=60:1) obtain white Solid 11mg, yield 35%.1H NMR(CD3OD,400MHz)δ7.82(s,1H),7.41(m,2H),7.15(d,1H, J=6.4Hz), 2.93 (t, 1H, J=7.5Hz), 2.56 (s, 3H), 1.78 (m, 1H), 1.47 (t, 2H, J=7.3Hz), 0.97 (d, 6H, J=5.0Hz) .MS (ESI) m/z 288.0 [M-H]-,315.9[M+2CH2-H]-.。
Embodiment 34:The preparation of 5- methyl benzofuran -2- formic acid
5- cresotinic acids aldehyde (1g, 7.3mmol), potassium carbonate (2g, 15mmol), tetrabuthyl-phosphonium bromide are sequentially added into 100mL toluene Ammonium (0.2g, 0.7mmol) and KI (0.6g, 3.7mmol), are warming up to 80 DEG C of stirrings, then add bromomalonic acid diethyl Ester (2.6g, 11mmol), is warming up to addition 3mL potassium hydroxide solutions in backflow, 24 hours backward reaction solutions, continues to stir 24 hours, room temperature is cooled to, solvent is removed using Rotary Evaporators, 1g potassium hydroxide and 100mL is sequentially added into residue Ethanol, is warming up to 80 DEG C of stirrings, and TLC detections display reaction is complete after 1 hour, and solvent is removed using Rotary Evaporators, to surplus 50mL water is added in excess, it is 3 to be adjusted to pH value using 2M HCl solution, yellow solid occurs, filters and be washed with water Wash, obtain faint yellow solid 0.8g, yield 62%.1H NMR(CDCl3,400MHz)δ7.57(s,1H),7.47(s,2H), 7.29(m,1H),2.45(s,3H).MS(ESI)m/z 177.1[M+H]+,199.1[M+Na]+.
(R)-(3- methyl isophthalic acids-(5- methyl benzofuran -2- formamidos) butyl) preparation of boric acid (compound II-6)
Under nitrogen protective condition, 5- methyl benzofuran -2- formic acid (19mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 10 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 4 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=60:1) obtain white Solid 14mg, yield 44%.1H NMR(CD3OD,400MHz)δ7.65(s,1H),7.55(s,1H),7.46(m,2H), (d, 6H, the J=6.2Hz) of 2.91 (t, 1H, J=7.2Hz), 2.44 (s, 3H), 1.75 (m, 1H), 1.45 (t, 2H, J=7.6Hz), 0.95 MS(ESI)m/z 288.1[M-H]-,302.1[M+CH2-H]-,316.1[M+2CH2-H]-.。
Embodiment 35:The preparation of 6- methyl benzofuran -2- formic acid
4-Methyl Salicylaldehyde (1g, 7.3mmol), potassium carbonate (2g, 15mmol), tetrabuthyl-phosphonium bromide are sequentially added into 100mL toluene Ammonium (0.2g, 0.7mmol) and KI (0.6g, 3.7mmol), are warming up to 80 DEG C of stirrings, then add bromomalonic acid diethyl Ester (2.6g, 11mmol), is warming up to addition 3mL potassium hydroxide solutions in backflow, 20 hours backward reaction solutions, continues to stir 24 hours, room temperature is cooled to, solvent is removed using Rotary Evaporators, 1g potassium hydroxide and 100mL is sequentially added into residue Ethanol, is warming up to 80 DEG C of stirrings, and TLC detections display reaction is complete after 3 hours, and solvent is removed using Rotary Evaporators, to surplus 50mL water is added in excess, it is 3 to be adjusted to pH value using 2M HCl solution, yellow solid occurs, filters and be washed with water Wash, obtain faint yellow solid 0.6g, yield 47%.1H NMR(CD3OD, 400MHz) δ 7.39 (d, 1H, J=8.0Hz), 7.29 (s, 1H), 7.20 (s, 1H), 6.96 (d, 1H, J=8.0Hz), 2.29 (s, 3H) .MS (ESI) m/z 177.1 [M+H]+,199.0 [M+Na]+.
(R)-(3- methyl isophthalic acids-(6- methyl benzofuran -2- formamidos) butyl) preparation of boric acid (compound II-7)
Under nitrogen protective condition, 6- methyl benzofuran -2- formic acid (19mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 11 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 5 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=60:1) obtain white Solid 14mg, yield 44%.1H NMR(CD3OD,400MHz)δ7.41(m,2H),7.19(s,1H),6.96(d,1H, J=8.0Hz), 2.65 (t, 1H, J=7.4Hz), 2.24 (s, 3H), 1.51 (m, 1H), 1.20 (t, 2H, J=7.3Hz), 0.71 (d, 6H, J=5.4Hz) .MS (ESI) m/z 288.0 [M-H]-,301.9[M+CH2-H]-,316.0[M+2CH2-H]-.。
Embodiment 36:The preparation of 7- methyl benzofuran -2- formic acid
3- cresotinic acids aldehyde (1g, 7.3mmol), potassium carbonate (2g, 15mmol), tetrabuthyl-phosphonium bromide are sequentially added into 100mL toluene Ammonium (0.2g, 0.7mmol) and KI (0.6g, 3.7mmol), are warming up to 80 DEG C of stirrings, then add bromomalonic acid diethyl Ester (2.6g, 11mmol), is warming up to addition 3mL potassium hydroxide solutions in backflow, 26 hours backward reaction solutions, continues to stir 24 hours, room temperature is cooled to, solvent is removed using Rotary Evaporators, 1g potassium hydroxide and 100mL is sequentially added into residue Ethanol, is warming up to 80 DEG C of stirrings, and TLC detections display reaction is complete after 3 hours, and solvent is removed using Rotary Evaporators, to surplus 50mL water is added in excess, it is 3 to be adjusted to pH value using 2M HCl solution, yellow solid occurs, filters and be washed with water Wash, obtain faint yellow solid 0.4g, yield 31%.1H NMR(CD3OD, 400MHz) δ 7.27 (d, 2H, J=10.6Hz), 6.96(m,2H),2.27(s,3H).MS(ESI)m/z 177.1[M+H]+,199.0[M+Na]+.
(R)-(3- methyl isophthalic acids-(7- methyl benzofuran -2- formamidos) butyl) preparation of boric acid (compound II-8)
Under nitrogen protective condition, 7- methyl benzofuran -2- formic acid (19mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 10 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 5 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=60:1) obtain white Solid 17mg, yield 53%.1H NMR(CD3OD, 400MHz) δ 7.46 (s, 1H), 7.31 (d, 1H, J=7.5Hz), 7.06 (d, 1H, J=7.1Hz), 6.99 (d, 1H, J=7.6Hz), 2.66 (t, 1H, J=6.7Hz), 2.31 (s, 3H), 1.52 (m, 1H), 1.22 (t, 2H, J=7.2Hz), 0.70 (d, 6H, J=4.4Hz) .MS (ESI) m/z 288.0 [M-H]-,302.0[M+CH2-H]-,315.9 [M+2CH2-H]-.。
Embodiment 37:(R)-(1- (5- ethyl benzofuran -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound II-9)
Under nitrogen protective condition, 5- ethyl benzofuran -2- formic acid (21mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 13 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 6 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) obtain white Solid 13mg, yield 39%.1H NMR(CD3OD,400MHz)δ7.69(s,1H),7.59(s,1H),7.54(d,1H, ), J=8.5Hz 7.39 (d, 1H, J=7.6Hz), 2.92 (t, 1H, J=7.6Hz), 2.76 (q, 2H, J=7.5Hz), 1.77 (m, 1H), 1.47 (t, 2H, J=7.2Hz), 1.28 (t, 3H, J=7.6Hz), 0.97 (d, 6H, J=5.0Hz) .MS (ESI) m/z 302.0 [M-H]-, 315.9[M+CH2-H]-,330.0[M+2CH2-H]-.。
Embodiment 38:The preparation of 5- tert-butyl-benzofuran -2- formic acid
5- tert-butyl groups salicylide (1.3g, 7.3mmol), potassium carbonate (2g, 15mmol), bromination four are sequentially added into 100mL toluene Butyl ammonium (0.2g, 0.7mmol) and KI (0.6g, 3.7mmol), are warming up to 80 DEG C of stirrings, then add bromomalonic acid Diethylester (2.6g, 11mmol), is warming up to addition 3mL potassium hydroxide solutions in backflow, 20 hours backward reaction solutions, continues Stirring 24 hours, be cooled to room temperature, using Rotary Evaporators remove solvent, sequentially added into residue 1g potassium hydroxide and 100mL ethanol, is warming up to 80 DEG C of stirrings, and TLC detections display reaction is complete after 1 hour, and solvent is removed using Rotary Evaporators, 50mL water is added into residue, it is 3 to be adjusted to pH value using 2M HCl solution, yellow solid occurs, and filtering is used in combination Water washing, obtains faint yellow solid 0.7g, yield 44%.1H NMR(CD3OD,400MHz)δ7.49(s,1H),7.29(m, 3H),1.13(s,9H).MS(ESI)m/z 219.1[M+H]+,241.0[M+Na]+.
(R)-(1- (5- tert-butyl-benzofuran -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound II-10)
Under nitrogen protective condition, added into 5mL anhydrous methylene chlorides 5- tert-butyl-benzofuran -2- formic acid (24mg, 0.11mmol), it is stirred at room temperature, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl after stirring 10 minutes (25mg, 0.13mmol), then add the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), TLC detections display reaction is complete after 11 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% lemon Acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, and drying is finished After filter, remove solvent using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- first Base propyl boric acid (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), TLC detections display reaction is complete after 5 hours, stands reaction solution to being layered, lower floor is washed with n-hexane, adds anhydrous slufuric acid Sodium is dried, and is dried and is filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=70:1) Obtain yellow solid 13mg, yield 36%.1H NMR(CD3OD,400MHz)δ7.53(s,1H),7.47(s,1H),7.39(d, 1H, J=8.9Hz), 7.30 (d, 1H, J=8.5Hz), 2.66 (t, 1H, J=7.3Hz), 1.51 (m, 1H), 1.21 (t, 2H, J=7.2Hz), 1.13 (s, 9H), 0.71 (d, 6H, J=5.3Hz) .MS (ESI) m/z 330.0 [M-H]-,343.9[M+CH2-H]-,358.0[M +2CH2-H]-.。
Embodiment 39:(R)-(1- (5- Methoxvbenzofuran -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound II-11)
Under nitrogen protective condition, added into 5mL anhydrous methylene chlorides 5- Methoxvbenzofuran -2- formic acid (21mg, 0.11mmol), it is stirred at room temperature, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl after stirring 10 minutes (25mg, 0.13mmol), then add the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), TLC detections display reaction is complete after 10 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% lemon Acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, and drying is finished After filter, remove solvent using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- first Base propyl boric acid (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), TLC detections display reaction is complete after 3 hours, stands reaction solution to being layered, lower floor is washed with n-hexane, adds anhydrous slufuric acid Sodium is dried, and is dried and is filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=40:1) Obtain yellow solid 9mg, yield 27%.1H NMR(CD3OD, 400MHz) δ 7.43 (s, 1H), 7.27 (d, 1H, J=8.6Hz), 7.00 (s, 1H), 6.88 (d, 1H, J=8.9Hz), 3.60 (s, 3H), 2.67 (t, 1H, J=7.1Hz), 1.52 (m, 1H), 1.22 (t, 2H, ), J=6.1Hz 0.72 (d, 6H, J=4.6Hz) .MS (ESI) m/z 304.1 [M-H]-,318.2[M+CH2-H]-,332.1[M+ 2CH2-H]-.。
Embodiment 40:The preparation of 5- Fluorobenzofur -2- formic acid
5- fluorine salicylide (1g, 7.3mmol), potassium carbonate (2g, 15mmol), Tetrabutylammonium bromide are sequentially added into 100mL toluene (0.2g, 0.7mmol) and KI (0.6g, 3.7mmol), is warming up to 80 DEG C of stirrings, then adds bromo diethyl malonate (2.6g, 11mmol), is warming up to addition 3mL potassium hydroxide solutions in backflow, 21 hours backward reaction solutions, continues to stir 24 Hour, room temperature is cooled to, solvent is removed using Rotary Evaporators, 1g potassium hydroxide and 100mL second is sequentially added into residue Alcohol, is warming up to 80 DEG C of stirrings, and TLC detections display reaction is complete after 1 hour, solvent is removed using Rotary Evaporators, to residue 50mL water is added in thing, it is 3 to be adjusted to pH value using 2M HCl solution, yellow solid occurs, filters and be washed with water, Obtain faint yellow solid 1.2g, yield 91%.1H NMR(DMSO-d6,400MHz)δ7.74(m,1H),7.58(m,2H), 7.34(m,1H).MS(ESI)m/z 181.1[M+H]+,203.1[M+Na]+.
(R)-(1- (5- Fluorobenzofur -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound II-12)
Under nitrogen protective condition, 5- Fluorobenzofur -2- formic acid (20mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 10 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 5 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) yellow is obtained Solid 17mg, yield 53%.1H NMR(CD3OD, 400MHz) δ 7.66 (m, 2H), 7.49 (d, 1H, J=8.0Hz), 7.30 (t, 1H, J=8.8Hz), 2.98 (t, 1H, J=7.2Hz), 1.76 (m, 1H), 1.48 (t, 2H, J=7.1Hz), 0.96 (d, 6H, J=6.5Hz) MS(ESI)m/z 292.1[M-H]-,306.1[M+CH2-H]-,320.1[M+2CH2-H]-.。
Embodiment 41:(R)-(1- (5- chlorobenzofur -2- the formamidos) -3- methyl butyls) preparation of boric acid (compound II-13)
Under nitrogen protective condition, 5- chlorobenzofur -2- formic acid (22mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 10 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 5 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) yellow is obtained Solid 19mg, yield 56%.1H NMR(CD3OD, 400MHz) δ 7.63 (m, 3H), 7.44 (d, 1H, J=8.4Hz), 2.97 (t, 1H, J=7.1Hz), 1.75 (m, 1H), 1.49 (t, 2H, J=7.4Hz), 0.95 (d, 6H, J=5.3Hz) .MS (ESI) m/z 308.1[M-H]-,322.1[M+CH2-H]-,336.0[M+2CH2-H]-.。
Embodiment 42:(R)-(3- methyl isophthalic acids-(5- nitrobenzofuran -2- formamidos) butyl) preparation of boric acid (compound II-14)
Under nitrogen protective condition, 5- nitrobenzofuran -2- formic acid (23mg, 0.11mmol) is added into 5mL anhydrous methylene chlorides, Be stirred at room temperature, add HOBt (18mg, 0.13mmol), continue stir 10 minutes after add EDCHCl (25mg, 0.13mmol), the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol) is then added, TLC detections display reaction is complete after 15 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% citric acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, is dried and is filtered after finishing, Solvent is removed using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- methyl-propyl boron Sour (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), 5 is small When after TLC detection display reactions it is complete, stand reaction solution to being layered, lower floor is washed with n-hexane, add anhydrous sodium sulfate and do It is dry, dry and filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=60:1) yellow is obtained Solid 17mg, yield 48%.1H NMR(CD3OD, 400MHz) δ 8.52 (s, 1H), 8.17 (d, 1H, J=8.5Hz), 7.60 (m, 2H), 2.84 (t, 1H, J=7.4Hz), 1.51 (m, 1H), 1.27 (t, 2H, J=7.2Hz), 0.73 (d, 6H, J=2.9Hz) .MS (ESI)m/z 319.0[M-H]-,333.1[M+CH2-H]-,347.1[M+2CH2-H]-.。
Embodiment 43:(R)-(3- methyl isophthalic acids-(5- trifluoromethylbenzofur -2- formamidos) butyl) preparation of boric acid (compound II-15)
Under nitrogen protective condition, added into 5mL anhydrous methylene chlorides 5- trifluoromethylbenzofur -2- formic acid (25mg, 0.11mmol), it is stirred at room temperature, adds HOBt (18mg, 0.13mmol), continues to add EDCHCl after stirring 10 minutes (25mg, 0.13mmol), then add the compound III-8-a (50mg, 0.17mmol) of embodiment 6 and DIPEA (0.04mL, 0.22mmol), TLC detections display reaction is complete after 17 hours, and reaction solution uses 5%NaHCO respectively3Solution, 10% lemon Acid solution, 5%NaHCO3Solution and saturated common salt water washing, anhydrous sodium sulfate drying is added into organic phase, and drying is finished After filter, remove solvent using Rotary Evaporators, products therefrom is added directly into 5mL methanol, is stirred at room temperature, add 2- first Base propyl boric acid (22mg, 0.22mmol) and 5mL n-hexanes, then add 1M HCl solution (0.33mL, 0.33mmol), TLC detections display reaction is complete after 5 hours, stands reaction solution to being layered, lower floor is washed with n-hexane, adds anhydrous slufuric acid Sodium is dried, and is dried and is filtered after finishing, solvent, column chromatography for separation (dichloromethane are removed using Rotary Evaporators:Methanol=50:1) Obtain yellow solid 14mg, yield 37%.1H NMR(CD3OD,400MHz)δ8.18(s,1H),7.82(s,3H),3.03(t, 1H, J=7.3Hz), 1.76 (m, 1H), 1.50 (t, 2H, J=6.6Hz), [M of 0.97 (d, 6H, J=3.9Hz) .MS (ESI) m/z 341.9 -H]-,369.9[M+2CH2-H]-.。
Embodiment 44:The determination test of the compounds of this invention proteasome inhibition activity
Use and tested purchased from Chemicon (Chemicon, USA) 20S proteasome kits in the present embodiment.Should The general principle of method of testing is that 20S proteasomes hydrolyze fluorogenic substrate Suc-LLVY-AMC (Suc-Leu-Leu-Val-Tyr-AMC, Suc are succinyl group, and AMC is 7- acid amides -4- methylcoumarins), The AMC with fluorescence is discharged, by changing the concentration of compound to be tested, SpectraMax M5 ELIASAs are utilized (380nm/460nm) measures the fluorescent value that AMC is discharged under various concentrations, so as to judge that compound is rotten to 20S proteasomes The inhibition level in chymotrypsin-like activity site (CT-L), compound is calculated to 20S proteasomes using GraphPad Prism softwares The IC that chymotrypsinlike activity site suppresses50Value;Table 1 shows that part of compounds is lived to 20S proteasome chymotrypsins sample Property site suppress IC50Value.
Inhibitory action of the test-compound of table 1. to mankind's 20S proteasome chymotrypsinlike activities site
·IC50It is worth for the average value of independent experiment at least twice,
NA represents inactive under 10000nM concentration.

Claims (20)

1. boric acid compound, it is characterised in that described compound is substituted five-membered heterocyclic boronic acids class and replaced benzo five-membered Heterocyclic boronic acids class compound, it has Formulas I structure or Formula II structure,
In Formulas I:
X is C, O, S or NH;Y is CR, O, S or NH, and wherein R is hydrogen, alkyl or aryl;
In Formula II:
X is O, S or NH;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
2. compound according to claim 1, it is characterised in that described compound is the compound of Formulas I structure,
3. compound according to claim 2, it is characterised in that described compound is S- enantiomters.
4. compound according to claim 2, it is characterised in that wherein X is O, S or NH, and Y is CR, wherein R is hydrogen, alkyl or aryl.
5. compound according to claim 4, it is characterised in that it is S- enantiomters.
6. compound according to claim 2, wherein X are C, Y is O, S or NH.
7. compound according to claim 6, it is S- enantiomters.
8. compound according to claim 1, it is characterised in that described compound is the compound of Formula II structure,
Wherein:
X is O, S or NH;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
9. compound according to claim 8, it has following structure,
10. compound according to claim 9, it is S- enantiomters.
11. compound according to claim 9, wherein X are O;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
12. compound according to claim 11, it is S- enantiomters.
13. compound according to claim 11, wherein X are O;
R1、R2、R3、R4And R5Can only at most there is a presence;
R1、R2、R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
14. compound according to claim 13, it is S- enantiomters.
15. compound according to claim 13, wherein X are O;
R1、R2For hydrogen, R3、R4And R5Can only at most there is a presence;
R3、R4And R5Stand alone as hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
16. compound according to claim 15, it is S- enantiomters.
17. compound according to claim 15, wherein X are O;
R1、R2、R4And R5For hydrogen;
R3For hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl, halogen or nitro.
18. compound according to claim 17, it is S- enantiomters.
19. purposes of any described compound in proteasome inhibitor is prepared in claim 1-18.
20. the purposes as described in claim 19, wherein described proteasome inhibitor is to be used to treat disease related to proteasome The medicine of disease.
CN201610125690.2A 2016-03-06 2016-03-06 Boric acid compound and its production and use Pending CN107151255A (en)

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Publication number Priority date Publication date Assignee Title
WO2022123530A1 (en) * 2020-12-10 2022-06-16 주식회사 엘지화학 Boronic acid compound

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