112661-59-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 112661-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,6,6 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 112661-59:
(8*1)+(7*1)+(6*2)+(5*6)+(4*6)+(3*1)+(2*5)+(1*9)=103
103 % 10 = 3
So 112661-59-3 is a valid CAS Registry Number.
InChI:InChI=1/C20H32O4/c1-13-5-6-15-19(12-21,23-15)11-16-20(24-16)14(17(2,3)22)8-10-18(20,4)9-7-13/h14-16,21-22H,1,5-12H2,2-4H3/t14-,15?,16?,18+,19?,20?/m0/s1
112661-59-3Relevant articles and documents
Total synthesis of marine diterpenoid stolonidiol
Miyaoka, Hiroaki,Baba, Tomohiro,Mitome, Hidemichi,Yamada, Yasuji
, p. 9233 - 9236 (2007/10/03)
Marine dolabellane diterpenoid stolonidiol was synthesized from L-ascorbic acid. The method for this total synthesis involves formation of the bicyclo[2.2.1]heptane derivative using a diastereoselective sequential Michael reaction, formation of cyclopentane derivative by the retro-aldol reaction and construction of an 11-membered carbocyclic ring through the intramolecular Horner-Wadsworth-Emmons reaction.