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3α-acetoxy-12α-tosyloxy-5β-H-pregnan-20-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

526203-67-8

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526203-67-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 526203-67-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,6,2,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 526203-67:
(8*5)+(7*2)+(6*6)+(5*2)+(4*0)+(3*3)+(2*6)+(1*7)=128
128 % 10 = 8
So 526203-67-8 is a valid CAS Registry Number.

526203-67-8Downstream Products

526203-67-8Relevant academic research and scientific papers

PhI=NSes mediated aziridination of 11-pregnane derivatives: Synthesis of an 11,12-aziridino analogue of neuroactive steroids

Di Chenna, Pablo H.,Dauban, Philippe,Ghini, Alberto,Baggio, Ricardo,Garland, Maria Teresa,Burton, Gerardo,Dodd, Robert H.

, p. 1009 - 1014 (2003)

Reaction of 11-pregnene-3,20-dione (6) or 3-α-acetoxy-11-pregnen-20-one (12) with trimethylsilylethanesulfonyl ('Ses') iminoiodinane 5 in the presence of copper (I) triflate gave the corresponding α,α-11,12-aziridino steroids 7 and 13 in 53 and 45% yields, respectively. The Ses group of each compound was removed using the TASF reagent and the resulting free aziridine NH was methylated to afford the 11α,12α-N-methyl aziridinosteroids 9 and 15, respectively. The latter is a conformationally constrained analogue of the endogenous neurosteroid pregnanolone (1).

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