Enantiomerically pure 15-deoxoclerocidin (14), 15-dihydro-12-O-formylclerocidin (19) and 12-O-formyl-15,20-tetrahydroclerocidin (18) were synthesized from a methyl-substituted Wieland Miescher ketone (3). (C) 2000 Elsevier Science Ltd, All rights reserved.
Enantiomerically pure 15-deoxoclerocidin (14), 15-dihydro-12-O-formylclerocidin (19) and 12-O-formyl-15,20-tetrahydroclerocidin (18) were synthesized from a methyl-substituted Wieland Miescher ketone (3). (C) 2000 Elsevier Science Ltd, All rights reserved.
Reaction of diazomethane with clerocidin. Preparation of new clerodane diterpenoid derivatives
作者:J.P. Jacquet、D. Bouzard、P. Remuzon
DOI:10.1016/0040-4039(93)89022-i
日期:1993.1
Reaction of 1 with diazomethane in MeOH gave the ketone 2 as well as the diepoxide 4. The alcohol 3, obtained by hydrolysis of 2 was acetylated and oxidized to give 6.