57072-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57072-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,7 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 57072-56:
(7*5)+(6*7)+(5*0)+(4*7)+(3*2)+(2*5)+(1*6)=127
127 % 10 = 7
So 57072-56-7 is a valid CAS Registry Number.
57072-56-7Relevant articles and documents
Enantiospecific synthesis of (+)-hyacinthacine A2
Dewi-Wülfing, Purnama,Blechert, Siegfried
, p. 1852 - 1856 (2007/10/03)
We report an efficient synthesis of (+)-hyacinthacine A2 in six steps from (S)-N-Cbz-vinylgylcine. The key strategies were the olefin cross metathesis (CM), Sharpless asymmetric dihydroxylation, and a sequential double reductive cyclization. Wi
