BERGMAN, JAN;BRYNOLF, ANNA, TETRAHEDRON, 46,(1990) N, C. 1295-1310
作者:BERGMAN, JAN、BRYNOLF, ANNA
DOI:——
日期:——
Synthesis of Chrysogine, a Metabolite of Penicillium chrysogenum and some related 2-substituted 4-(3H)-Quinazolinones
作者:Jan Bergman、Anna Brynolf
DOI:10.1016/s0040-4020(01)86694-1
日期:1990.1
Syntheses of both enantiomers of chrysogine, 2-(α-hydroxyethyl)-4(3H)-quinazolinone, 1 from 2-ammobenzamide are reported. Thus reaction of 2-aminobenzamide and optically active α-acetoxypropionyl chloride gave 9, which upon saponification and cyclization induced by aqueous sodium carbonate at room temperature gave chrysogine. The enantiomeric purity of 1 was determined by NMR. Inversion of (-)-(S)-1