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201856-53-3

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  • High quality (3R,4S)-1-Benzoyl-3-(1-Ethoxyethoxy)-4-Phenyl-2-Azetidinone supplier in China

    Cas No: 201856-53-3

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201856-53-3 Usage

Uses

(3R,4S)-1-Benzoyl-3-(1-ethoxyethoxy)-4-phenyl-2-azetidinone is an investigational intermediate chemical for Paclitaxel and Docetaxel.

Check Digit Verification of cas no

The CAS Registry Mumber 201856-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,5 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 201856-53:
(8*2)+(7*0)+(6*1)+(5*8)+(4*5)+(3*6)+(2*5)+(1*3)=113
113 % 10 = 3
So 201856-53-3 is a valid CAS Registry Number.
InChI:InChI=1/C20H21NO4/c1-3-24-14(2)25-18-17(15-10-6-4-7-11-15)21(20(18)23)19(22)16-12-8-5-9-13-16/h4-14,17-18H,3H2,1-2H3/t14?,17-,18+/m0/s1

201856-53-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name (3R,4S)-1-Benzoyl-3-(1-ethoxyethoxy)-4-phenyl-2-azetidinone

1.2 Other means of identification

Product number -
Other names rac.-cis-2-Phenyl-1-benzoyl-cyclopropan

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:201856-53-3 SDS

201856-53-3Relevant articles and documents

Method for preparation of taxol using an oxazinone

-

, (2008/06/13)

Process for the preparation of a taxol intermediate comprising contacting an alcohol with an oxazinone having the formula: STR1 wherein R1 is aryl, heteroaryl, alkyl, alkenyl, alkynyl or OR7 wherein R7 is alkyl, alkenyl, a

New and efficient approaches to the semisynthesis of taxol and its C-13 side chain analogs by means of β-lactam synthon method

Ojima, Iwao,Habus, Ivan,Zhao, Mangzhu,Zucco, Martine,Park, Young Hoon,Sun, Chung Ming,Brigaud, Thierry

, p. 6985 - 7012 (2007/10/02)

Highly efficient chiral ester enolate-imine condensation giving 3-hydroxy-4-aryl-β-lactams with excellent enantiomeric purity is successfully applied to the asymmetric synthesis of the enantiomerically pure taxol C-13 side chain, N-benzoyl-(2R,3S)-3-phenyl-isoserine and its analogs. (3R,4S)-N-benzoyl-3-(1-ethoxyethoxy)-4-phenyl-2-azetidinone readily derived from the 3-hydroxy-4-phenyl-β-lactam is coupled with protected baccatin IIIs, followed by deprotection to give optically pure taxol and 10-deacetyl-7,10-bis(Troc)-taxol in good yields. Fully assigned 1H, 13C, and 2D (COSY and HETCOR) NMR spectra of taxol thus synthesized are shown and discussed.

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