501169-65-9Relevant articles and documents
Antifolate chemistry: Synthesis of 4-{N-[(6RS)-2-methyl-4-oxo- 3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid via a (propargyl)Co2(CO)6+ complex
Bavetsias, Vassilios,Clauss, Rainer,Henderson, Elisa A.
, p. 1943 - 1946 (2007/10/03)
A new route to compound 3 (4-{N-[(6RS)-2-methyl-4-oxo-3,4,7,8- tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid), a crucial intermediate for the synthesis of potent inhibitors of thymidylate synthase (TS), is described. In this sequence the C6-N10 bond was constructed first, by the reductive amination of 5-acetamido-6-bromoindan-1-one 6 with tert-butyl 4-aminobenzoate, then the cyclopenta[g]quinazolinone ring was formed and the propargyl group was introduced on the N10-position using the (propargyl)Co2(CO)6+ complex as the electrophilic propargyl reagent.