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1415657-99-6

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1415657-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1415657-99-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,5,6,5 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1415657-99:
(9*1)+(8*4)+(7*1)+(6*5)+(5*6)+(4*5)+(3*7)+(2*9)+(1*9)=176
176 % 10 = 6
So 1415657-99-6 is a valid CAS Registry Number.

1415657-99-6Relevant articles and documents

Macrocyclizations for medicinal chemistry: Synthesis of druglike macrocycles by high-concentration ullmann coupling

Collins, James C.,Farley, Kathleen A.,Limberakis, Chris,Liras, Spiros,Price, David,James, Keith

, p. 11079 - 11090 (2013/02/22)

Conditions have been identified for the efficient Ullmann macrocyclization of phenol and imidazole nucleophiles with aryl iodides at high reaction concentrations of up to 100 mM and using 5-10 mol % loading of an inexpensive copper catalyst. A range of substitution patterns and ring sizes are tolerated, and the method has been exemplified by the synthesis of a set of druglike macrocycles.

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