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125736-09-6

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125736-09-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125736-09-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,7,3 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 125736-09:
(8*1)+(7*2)+(6*5)+(5*7)+(4*3)+(3*6)+(2*0)+(1*9)=126
126 % 10 = 6
So 125736-09-6 is a valid CAS Registry Number.

125736-09-6Relevant articles and documents

Chirospecific Syntheses of Nitrogen and Side-Chain Modified Anatoxin Analogues. Synthesis of (1R)-Anatoxinal and (1R)-Anatoxinic Acid Derivatives

Howard, Michael H.,Sardina, F. Javier,Rapoport, Henry

, p. 2829 - 2838 (2007/10/02)

A straightforward and good yielding route to side-chain analogues of the potent neurotoxin and neurotransmitter (+)-anatoxin (1) has been developed.Peroxy acid oxidation of the (silyloxy)butadiene 43 derived from readily synthesized, optically pure (1R)-t-BOC-anatoxin (42) affords silyloxy ketone 44.Fluorolysis of 44 followed by oxidative cleavage of the resultant α-hydroxy ketone 45 gives a mixture of α,β-unsaturated acid 46 and ester 41 in 57percent combined yield.Other approaches to these compounds, based on literature precedent, failed. (1R)-t-BOC-anatoxinic acid (46) then serves as educt for the synthesis of a wide variety of anatoxin derivatives with modified side-chain functionality.These analogues, designed to serve as probes of the antagonist binding site of the nicotinic acetylcholine receptor, include alcohol, aldehyde, amide, hydroxamate, and oxime ether functional groups.

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