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171563-44-3

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171563-44-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171563-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,5,6 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 171563-44:
(8*1)+(7*7)+(6*1)+(5*5)+(4*6)+(3*3)+(2*4)+(1*4)=133
133 % 10 = 3
So 171563-44-3 is a valid CAS Registry Number.

171563-44-3Downstream Products

171563-44-3Relevant articles and documents

Uridine 5'-monoselenoacetals as substrates for diastereoselective homolytic C-C bond formation

Haraguchi, Kazuhiro,Tanaka, Hiromichi,Saito, Shigeru,Kinoshima, Satomi,Hosoe, Motoi,Kanmuri, Kazuhiro,Yamaguchi, Kentaro,Miyasaka, Tadashi

, p. 9469 - 9484 (2007/10/03)

Uridine 5'-monoselenoacetals prepared by the seleno-Pummere reaction of 5'-deoxy-5'-phenylselenouridines were used as substrates for radical-mediated reactions with allyltributyltin. The reaction of the 2',3'-O-isopropylidene derivative gave cyclized products, 5-allyl-6-5'-cyclonucleosides, whereas those of the 2',3'-bis-O-(tert-butyldimethylsilyl derivatives underwent the C-C bond formation at the 5'-position to give (5'S)- and (5'R)-isomers. The stereochemical outcome of both types of reactions is discussed. The use of radical acceptors other than allyltributyltin was also examined.

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