77396-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77396-87-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,9 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77396-87:
(7*7)+(6*7)+(5*3)+(4*9)+(3*6)+(2*8)+(1*7)=183
183 % 10 = 3
So 77396-87-3 is a valid CAS Registry Number.
77396-87-3Relevant articles and documents
A facile transformation of bicyclic keto esters to bisprotected (±)-8-epithienamycin via enol activation
Sletzinger,Liu,Reamer,Shinkai
, p. 4221 - 4224 (2007/10/02)
A facile "one-pot" transformation of bicyclic keto ester (2) to bisprotected (±)-8-epithienamycin via enol phosphate activation followed by the addition-elimination reaction of N-protected cysteamine derivative is described.