20072-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20072-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,7 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20072-25:
(7*2)+(6*0)+(5*0)+(4*7)+(3*2)+(2*2)+(1*5)=57
57 % 10 = 7
So 20072-25-7 is a valid CAS Registry Number.
InChI:InChI=1/C46H58N4O8/c1-8-28-21-29-24-45(41(52)56-6,37-31(15-19-49(25-28)26-29)30-13-10-11-14-34(30)47-37)33-22-32-35(23-36(33)55-5)48(4)39-44(32)17-20-50-18-12-16-43(9-2,38(44)50)40(58-27(3)51)46(39,54)42(53)57-7/h10-14,16,22-23,28-29,38-40,47,54H,8-9,15,17-21,24-26H2,1-7H3/t28-,29+,38+,39-,40-,43-,44-,45+,46+/m1/s1
20072-25-7Relevant articles and documents
Syntheses of 20'-Deoxyvinblastine, 20'-Deoxyleurosidine, 20'-Deoxyvincovaline, 20'-epi-20'-Deoxyvincovaline, and 20'-Deoxyvincristine and Its 20'-Epimer through Racemic and Enantioselectively Generated Intermediates. New Syntheses of D/E-cis- and -trans-Ψ
Kuehne, Martin E.,Bornmann, William G.
, p. 3407 - 3420 (2007/10/02)
Vindoline (20), on reaction with chloro imine derivatives of the D-seco-D/E-trans-Ψ- and -20-epi-Ψ-vincadifformines 18 and 19, followed by cyclization and debenzylation steps, provided the natural products 20'-deoxyvinblastine (4) and 20'-deoxyleurosidine
