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862108-13-2

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862108-13-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 862108-13-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,2,1,0 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 862108-13:
(8*8)+(7*6)+(6*2)+(5*1)+(4*0)+(3*8)+(2*1)+(1*3)=152
152 % 10 = 2
So 862108-13-2 is a valid CAS Registry Number.

862108-13-2Relevant articles and documents

Practical synthesis of a tetrasaccharide derivative corresponding to ristomycin A and ristocetin A

Zhang, Meimei,Du, Yuguo,Kong, Fanzuo

, p. 319 - 324 (2001)

A practical synthesis of fully benzoylated tetrasaccharide, whose free form is indispensable to the antibiotic ristomycin A for the process of dimerization and binding to the cell wall, was achieved via sequential assembly of the building blocks, allyl 3,4-di-O-benzoyl-α-D-glucopyranoside, 2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl trichloroacetimidate, 2-O-acetyl-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl trichloroacetimidate, and 2,3,5-tri-O-benzoyl-α-D-arabinofuranosyl trichloroacetimidate. A one-pot preparation of allyl 3,4-di-O-benzoyl-2-O-tert-butyldimethylsilyl-6-O-triphenylmethyl-α-D- glucopyranoside is described, and regioselective glycosylation is carried out using perbenzoylated sugar trichloroacetimidates as glycosyl donors in the presence of a catalytic amount of trimethylsilyl trifluoromethanesulfonate (TMSOTf).

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