J. Hao, H. Ohkura, H. Amii
2000
Citations
0
Influential Citations
8
Citations
Journal
Chemical Communications
Abstract
tert-Butyl 2-(difluoromethyl)-3-benzyl-6-methoxy-3,4-dihydro-4-quinazoline-4-carboxyl ic ester (4) and its related 6-substituted esters, precursors of a new type of cyclic amino acid, were synthesized via intramolecular defluorinative cyclization under basic conditions.