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124705-76-6

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124705-76-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124705-76-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,7,0 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 124705-76:
(8*1)+(7*2)+(6*4)+(5*7)+(4*0)+(3*5)+(2*7)+(1*6)=116
116 % 10 = 6
So 124705-76-6 is a valid CAS Registry Number.

124705-76-6Relevant articles and documents

SYNTHESIS OF ETOPOSIDE LACTAM VIA A MITSUNOBU REACTION SEQUENCE

Kadow, J. F.,Vyas, D. M.,Doyle, T. W.

, p. 3299 - 3302 (2007/10/02)

A novel chemical sequence for the conversion of a lactone antitumor agent 1 (etoposide) to the corresponding lactam 2 is described.The key steps involve a Mitsunobu cyclization (Ph3P, DEAD) of the γ-hydroxymethyl acyl benzaldehyde hydrazone 6 to a lactam derivative 7 followed by reductive cleavage (Ra-Ni) to lactam 2.

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