Rhizoxin synthetic studies. 2. Synthesis of the left hand [C(10) to C(19)] and polyene fragments
作者:David P. Provencal、Cristina Gardelli、Jennifer A. Lafontaine、James W. Leahy
DOI:10.1016/0040-4039(95)01194-m
日期:1995.8
The syntheses of the central core and the polyene fragments of the antitumor macrolide rhizoxin have been achieved in an efficient manner. The core has been prepared in enantiopure form via an asymmetric allylation/aldol protocol. The selective oxidation of dienes was studied and realized in fair yield to generate the requisite aldol precursor. The oxazole polyene fragment was generated in six steps
Enantioselective Total Synthesis of the Antitumor Macrolide Rhizoxin D
作者:Jennifer A. Lafontaine、David P. Provencal、Cristina Gardelli、James W. Leahy
DOI:10.1021/jo034011x
日期:2003.5.1
The convergent, highly enantioselectivesynthesis of rhizoxin D, a natural product possessing potent antitumor and antifungal bioactivity, is described. The C(1)-C(9) fragment of the molecule was synthesized utilizing a threefold pseudosymmetric intermediate ultimately derived from gamma-butyrolactone. The central core of rhizoxin D was prepared via a chiral resolution/asymmetric aldol protocol. Several