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952423-59-5

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952423-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 952423-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,2,4,2 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 952423-59:
(8*9)+(7*5)+(6*2)+(5*4)+(4*2)+(3*3)+(2*5)+(1*9)=175
175 % 10 = 5
So 952423-59-5 is a valid CAS Registry Number.

952423-59-5Relevant articles and documents

A scalable synthesis of an azabicyclooctanyl derivative, a novel DPP-4 inhibitor

Fei, Zhongbo,Wu, Quanbing,Zhang, Fei,Cao, Yudong,Liu, Chuanqin,Shieh, Wen-Chung,Xue, Song,McKenna, Joe,Prasad, Kapa,Prashad, Mahavir,Baeschlin, Daniel,Namoto, Kenji

experimental part, p. 9016 - 9021 (2009/04/06)

(Chemical Equation Presented) A practical synthetic strategy to a chiral azabicycclooctanyl derivative (1), a potent DPP-4 inhibitor, starting from a commercially available nortropine is described. The stereogenic center of 1 was established employing a modified protocol of Ellman's diastereoselective addition of a benzylic nucleophile to tert-butanesulfinimine. Other key steps include Corey-Chaykovsky reaction, Meinwald rearrangement, and CDMT-promoted amide bond formation involving a sterically hindered amine 2.

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