27205-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27205-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,2,0 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27205-80:
(7*2)+(6*7)+(5*2)+(4*0)+(3*5)+(2*8)+(1*0)=97
97 % 10 = 7
So 27205-80-7 is a valid CAS Registry Number.
27205-80-7Relevant articles and documents
Total synthesis of (±)-stemonamide and (±)-isostemonamide
Kende, Andrew S,Martin Hernando, Jose I,Milbank, Jared B.J
, p. 61 - 74 (2002)
Two different approaches to the alkaloids stemonamide and isostemonamide using N-acyliminium chemistry are described. The approach using an aldol spirocyclization to construct the second contiguous spirocenter was successful. The total synthesis of these