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144403-09-8

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144403-09-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144403-09-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,4,0 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 144403-09:
(8*1)+(7*4)+(6*4)+(5*4)+(4*0)+(3*3)+(2*0)+(1*9)=98
98 % 10 = 8
So 144403-09-8 is a valid CAS Registry Number.

144403-09-8Relevant articles and documents

A new powerful method for the transformation of lactams into ω-amino-carboxamides under high pressure conditions

Kotsuki,Iwasaki,Nishizawa

, p. 4945 - 4948 (1992)

High-pressure reaction of N-Boc-lactams with amines provides an efficient entry to ω-N-Boc-aminocarboxamide derivatives.

BORONIC ACID CATALYSTS AND METHODS OF USE THEREOF FOR ACTIVATION AND TRANSFORMATION OF CARBOXYLIC ACIDS

-

Page/Page column 40-41, (2012/09/10)

The present application provides methods and catalysts for activation of carboxylic acids for organic reactions. In particular, methods are disclosed for direct nucleophilic addition reactions, such as, amidation reactions with amines, cycloadditions, and conjugate additions, using boronic acid catalysts of formula I, II or III: Also included are novel boronic acid catalysts of formula IV, V and III:

Synthesis and antibacterial activity of novel 11,12-cyclic carbonate azithromycin 4-O-carbamate derivatives

Ma, Chenchen,Liu, Zhaopeng,Song, Hualong,Jiang, Rentao,He, Fawen,Ma, Shutao

, p. 3 - 8 (2011/10/18)

A series of novel 11,12-cyclic carbonate azithromycin 4″-O-carbamate derivatives were designed, synthesized and evaluated for their in vitro antibacterial activities. Compounds 7b and 7d were the most effective (0.5 and 0.5 μg ml 1) against two strains of

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