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.