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859498-31-0

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859498-31-0 Usage

General Description

The chemical "3,5-Oxazolidinedicarboxylic acid, 2-(4-methoxyphenyl)-4-phenyl-, 5-[(2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-4,6-bis[[(2,2,2-trichloroethoxy)carbonyl]oxy]-7,..." is a complex chemical compound with a long systematic name. The compound contains multiple functional groups including carboxylic acid, phenyl, and methoxyphenyl groups, as well as numerous stereochemical and structural descriptors. It is a highly specialized and potentially synthetic compound with a wide range of potential applications in pharmaceuticals, materials science, and other fields.

Check Digit Verification of cas no

The CAS Registry Mumber 859498-31-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,4,9 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 859498-31:
(8*8)+(7*5)+(6*9)+(5*4)+(4*9)+(3*8)+(2*3)+(1*1)=240
240 % 10 = 0
So 859498-31-0 is a valid CAS Registry Number.

859498-31-0Relevant articles and documents

Preparation method of cabazitaxel

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, (2021/11/27)

The invention discloses a preparation method of cabazitaxel, which comprises the following specific steps: dissolving 10-deacetylbaccatin III with dichloromethane and pyridine, dropwise adding 2,2,2-trichloroethyl chloroformate, and treating to obtain an intermediate I; mixing toluene, 4-dimethylaminopyridine, the intermediate I and (4S,5R)-3-tert-butoxycarbony-2-(4-anisy)- 4-phenyl-5-oxazolidinecarboxylic acid, stirring, dropwise adding N,N'-dicyclohexylcarbodiimide, and stirring for reaction to obtain an intermediate II; dissolving the intermediate II with ethyl acetate and acetic acid, adding zinc powder, carrying out a stirring reaction to obtain an intermediate III, dissolving the intermediate III with dichloromethane, adding 1,8-bis(dimethylamino)naphthalene, a molecular sieve and trimethyloxonium tetrafluoroborate, and carrying out a stirring reaction to obtain an intermediate IV; dissolving and clarifying the intermediate IV with methanol, dropwise adding a hydrochloric acid methanol solution having a concentration of 1mol/L, and stirring for reaction to obtain cabazitaxel. According to the method, methylation can be realized at room temperature, the product purity is good, the yield is high, starting materials are easy to obtain, and large-scale preparation can be carried out.

Docetaxel side chain 2'-derived novel taxanes antitumor compound as well as synthesis method and application thereof

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, (2017/08/29)

The invention discloses a docetaxel side chain 2'-derived novel taxanes antitumor compound shown as the general structure formula (I) as well as a synthesis method and application thereof. In the formula, X is N or O, R is H or acetyl, and R' is H, nitryl, cyano, methoxyl or a halogen group. The synthesis method takes 10-deacetylbaccatin is used as a raw material; after 7-OH and 10-OH are protected, condensation with phenylisoserine (side chain) protecting 3'-NHBoc and 2'-OH in the presence of condensation agents DCC (Dicyclohexylcarbodiimide) and DMAP (Dimethylaminopyridine) is performed; esterification with substituted phenyl isoxazole carboxylic acid or substituted phenyl oxadiazole methyl carboxylic acid in the presence of the DCC and the DMAP is performed; finally, a protecting group is removed to obtain the compound. The compound disclosed by the invention has relatively high activity on tumor cells.

Dynamic kinetic resolution of α-chloro β-keto esters and phosphonates: Hemisynthesis of Taxotere through Ru-DIFLUORPHOS asymmetric hydrogenation

Prevost, Sebastien,Gauthier, Sebastien,De Andrade, Maria Cristina Cano,Mordant, Celine,Touati, Ali Rhida,Lesot, Philippe,Savignac, Philippe,Ayad, Tahar,Phansavath, Phannarath,Ratovelomanana-Vidal, Virginie,Genet, Jean-Pierre

experimental part, p. 1436 - 1446 (2010/11/03)

The dynamic kinetic resolution (DKR) of racemic α-chloro β-ketoesters and α-chloro β-ketophosphonates through ruthenium-mediated asymmetric hydrogenation is reported. The corresponding α-chloro β-hydroxyesters and α-chloro β- hydroxyphosphonates were obtained in good to high enantio- and diastereomeric excesses using, in particular, the atropisomeric ligand DIFLUORPHOS. This methodology allowed an efficient preparation of the anti phenylisoserine side chain of Taxotere which has been used for the hemisynthesis of the cancer therapeutic agent itself. In addition, 13C NMR in chiral oriented solvents was used to investigate the DKR effect.

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