913827-68-6Relevant articles and documents
Synthesis of the parent and substituted tetracyclic ABCD ring cores of camptothecins via 1-(3-aryl-2-propynyl)-1,6-dihydro-6-oxo-2- pyridinecarbonitriles
Dai, Weixiang,Petersen, Jeffrey L.,Wang, Kung K.
, p. 4665 - 4667 (2007/10/03)
A new synthetic pathway to the parent and substituted ABCD ring cores of the camptothecin family of alkaloids was developed. The N-alkylation of 1,6-dihydro-6-oxo-2-pyridinecarbonitrile (2) with 3-bromo-1-phenylpropyne provided 3a using Curran's protocol.