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1219537-39-9

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1219537-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219537-39-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,5,3 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1219537-39:
(9*1)+(8*2)+(7*1)+(6*9)+(5*5)+(4*3)+(3*7)+(2*3)+(1*9)=159
159 % 10 = 9
So 1219537-39-9 is a valid CAS Registry Number.

1219537-39-9Downstream Products

1219537-39-9Relevant articles and documents

The sequential building of chiral macrocyclic Bis-β-Lactams by double staudinger-Cu-Catalyzed azide-Alkyne Cycloadditions

Pellico, Daniel,Gomez-Gallego, Mar,Ramirez-Lopez, Pedro,Mancheno, Maria Jose,Sierra, Miguel A.,Rosario Torres

supporting information; experimental part, p. 1592 - 1600 (2010/06/17)

A novel approach for the synthesis of macrocyclic bis-β-lactams based on the Cu-catalyzed alkyne-azide cycloaddition (CuAAC) is reported. The procedure is general and allows access to a full range of diastereomerically or enantiomerically pure macrocyclic cavities in good yields. The incorporation of chiral oxazolidinone fragments at C3 in the β-lactam rings allows the total enantiocontrol of the process.

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