94088-90-1 Usage
Uses
16α,17-Epoxypregna-4,9(11)-diene-3,20-dione is an intermediate in the synthesis of 16-Hydroxycorticosterone 20-Hydroxy-21-Acid (H918430), an oxidized derivative of corticosterone (C695700).
Check Digit Verification of cas no
The CAS Registry Mumber 94088-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,0,8 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 94088-90:
(7*9)+(6*4)+(5*0)+(4*8)+(3*8)+(2*9)+(1*0)=161
161 % 10 = 1
So 94088-90-1 is a valid CAS Registry Number.
94088-90-1Relevant articles and documents
Transformed steroids 194. Synthesis of pregna-Δ4,9-dien-3,20-diones from their 9α-hydroxyanalogs
Turuta, A. M.,Dzhlantiashvili, N. V.,Voishvillo, N. E.
, p. 946 - 949 (1993)
The approaches to the synthesis of various 16α,17α-disubstituted pregna-4,9-dien-3,20-diones from the corresponding 9α-derivatives with labile epoxide, dioxolane, and oxathiolane rings D' have been studied.The transformation has been found to proceed efficiently when the 9α-sulfinic esters are used at the intermediate stage and then elimination of sulfinic acid by TsOH/SiO2 is carried out.
