Synthesis and In Vitro Antitumor Activity of Thiophene Analogues of 5-Chloro-5,8-dideazafolic Acid and 2-Methyl-2-desamino-5-chloro-5,8-dideazafolic Acid
作者:R Forsch
DOI:10.1016/s0968-0896(02)00018-4
日期:2002.6
followed by NBS bromination, condensation with di-tert-butyl N-(5-amino-2-thenoyl)-L-glutamate (28), and stepwise cleavage of the protecting groups with ammonia and TFA yielded. Treatment of 9 with acetic anhydride afforded 2,6-dimethyl-5-chlorobenz[1,3-d]oxazin-4-one (31), which on reaction with ammonia, NaOH was converted to 2,6-dimethyl-5-chloro-3,4-dihydroquinazolin-4-one (33). Bromination of, followed
Quinazoline antifolate thymidylate synthase inhibitors: heterocyclic benzoyl ring modifications
作者:Peter R. Marsham、Leslie R. Hughes、Ann L. Jackman、Anthony J. Hayter、John Oldfield、J. Michael Wardleworth、Joel A. M. Bishop、Brigid M. O'Connor、A. Hilary Calvert
DOI:10.1021/jm00109a011
日期:1991.5
the p-aminobenzoate ring is replaced by the heterocycles thiophene, thiazole, thiadiazole, pyridine, and pyrimidine. These were generally elaborated by the reaction of (bromomethyl)quinazoline 18 or its N3-[(pivaloyloxy)methyl]-protected derivative 36 with suitable heterocyclicamines although each heterocyclic system required its own particular synthetic approach. The compounds were tested as inhibitors