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135885-06-2

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135885-06-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135885-06-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,8,8 and 5 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 135885-06:
(8*1)+(7*3)+(6*5)+(5*8)+(4*8)+(3*5)+(2*0)+(1*6)=152
152 % 10 = 2
So 135885-06-2 is a valid CAS Registry Number.

135885-06-2Downstream Products

135885-06-2Relevant articles and documents

Synthesis of 2',3'-didehydro-2',3'-didoxyformycin A, 2',3'-Dideoxyformycin A and 2',3'-Dideoxytubercidin

Serafinowski

, p. 411 - 415 (2007/10/02)

2',3'-Didehydro-2',3'-dideoxyformycin A (7) was prepared by reaction of the 7-amino-3-[5-O-(2-acetoxyisobutyryl)-3-bromo-3-deoxy-2-O- phenoxy(thiocarbonyl)-β-D-xylofuranosyl]-1 H-pyrazolo [4,3-d]-pyrimidine (5) or 7-amino-3-[5-O-(2-acetoxyisobutyryl)-2- bromo-2-deoxy-3-O-phenoxy(thiocarbonyl)-β-D-arabinofuranosyl]-1 H-pyrazolo[4,3-d]pyrimidine (9) with tributyltin hydride and subsequent deprotection of the resulting 5'-O-(2-acetoxyisobutyryl)-2',3'-didehydro-2',3'-dideoxyformycin A (6). 2',3'-Dideoxyformycin A (13) and 2',3'-dideoxytubercidin (16) were synthesized via deoxygeneration of their respective 3'-deoxy counterparts 10 and 2, respectively.

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