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87121-53-7

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87121-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87121-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,2 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 87121-53:
(7*8)+(6*7)+(5*1)+(4*2)+(3*1)+(2*5)+(1*3)=127
127 % 10 = 7
So 87121-53-7 is a valid CAS Registry Number.
InChI:InChI=1/C8H8ClNO/c1-2-7(11)6-3-4-10-8(9)5-6/h3-5H,2H2,1H3

87121-53-7Relevant articles and documents

Development of an enantioselective hydrogenation route to (S)-1-(2-(methylsulfonyl)pyridin-4-yl)propan-1-amine

Reeves, Jonathan T.,Tan, Zhulin,Reeves, Diana C.,Song, Jinhua J.,Han, Zhengxu S.,Xu, Yibo,Tang, Wenjun,Yang, Bing-Shiou,Razavi, Hossein,Harcken, Christian,Kuzmich, Daniel,Mahaney, Paige E.,Lee, Heewon,Busacca, Carl A.,Senanayake, Chris H.

, p. 904 - 911 (2014)

A highly enantioselective enamide hydrogenation route to the title amine was developed. Highlights of the synthesis include an efficient two-step synthesis of a 2-sulfonyl 4-pyridyl ethyl ketone, a simple enamide synthesis by direct condensation of propionamide with a ketone, catalytic asymmetric enamide hydrogenation employing the in-house-developed ligand MeO-BIBOP, and a mild epimerization-free deprotection of a propionamide using Koenig's procedure.

Practical formal total syntheses of the homocamptothecin derivative and anticancer agent diflomotecan via asymmetric acetate aldol additions to pyridine ketone substrates

Peters, Rene,Althaus, Martin,Diolez, Christian,Rolland, Alain,Manginot, Eric,Veyrat, Marc

, p. 7583 - 7595 (2007/10/03)

(Chemical Equation Presented) Two practical, efficient, and scalable asymmetric routes to DE ring fragment 7, a key building block in the synthesis of the homocamptothecin derivative diflomotecan 4, are described. The "acetal route" starts from 2-chloro-4

New analogues of camptothecin, their use as medicaments and the pharmaceutical compositions containing them

-

, (2008/06/13)

A compound of the formula wherein the substituents are defined as in the specification which compounds are useful in the treatment of cancer.

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