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1588421-61-7

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1588421-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1588421-61-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,8,4,2 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1588421-61:
(9*1)+(8*5)+(7*8)+(6*8)+(5*4)+(4*2)+(3*1)+(2*6)+(1*1)=197
197 % 10 = 7
So 1588421-61-7 is a valid CAS Registry Number.

1588421-61-7Downstream Products

1588421-61-7Relevant articles and documents

Stereospecific alkylation of substituted adenines by the Mitsunobu coupling reaction under microwave-assisted conditions

Garcia-Rubino,Nunez-Carretero,Choquesillo-Lazarte,Garcia-Ruiz,Madrid, Yolanda,Campos

, p. 22425 - 22433 (2014)

A novel and efficient synthetic method has been developed for the preparation of alkylated aminopurines (N,N-dimethyl-, 2-chloro-N-methyl-, and N-methyladenines) with achiral and chiral 3,4-dihydro-2H-1,5-benzoxathiepin-3-ol by the Mitsunobu reaction under microwave-assisted conditions. This reaction reveals a complete inversion of the stereogenic centre of the secondary alcohol giving an alkylated purine linked to a homochiral six-membered ring. Fifty novel purine derivatives have been prepared. Alkylation sites have been determined by 2D NMR techniques and for three compounds have been confirmed by X-ray crystallography. The N-9/N-3 regioselectivity can be justified by the electronic effects of the substituents at positions 2 and 6 of the purine. This journal is the Partner Organisations 2014.

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