852616-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 852616-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,6,1 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 852616-69:
(8*8)+(7*5)+(6*2)+(5*6)+(4*1)+(3*6)+(2*6)+(1*9)=184
184 % 10 = 4
So 852616-69-4 is a valid CAS Registry Number.
852616-69-4Relevant articles and documents
Synthesis of 3′-deoxy-3′-difluoromethyl azanucleosides from trans-4-hydroxy-L-proline
Qiu, Xiao-Long,Qing, Feng-Ling
, p. 3826 - 3837 (2005)
Two strategies were tried to synthesize 3′-deoxy-3′- difluoromethyl azanucleosides. After the failure of the first route, the key intermediate 12 from trans-4-hydroxyproline 7 in 8 steps was stereoselectively prepared. The alcohol 12 was subjected to sele