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124816-28-0

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124816-28-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124816-28-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,8,1 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 124816-28:
(8*1)+(7*2)+(6*4)+(5*8)+(4*1)+(3*6)+(2*2)+(1*8)=120
120 % 10 = 0
So 124816-28-0 is a valid CAS Registry Number.

124816-28-0Upstream product

124816-28-0Relevant articles and documents

SYNTHESIS OF ETOPOSIDE LACTAM VIA A MITSUNOBU REACTION SEQUENCE

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

, p. 3299 - 3302 (1989)

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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