Total synthesis of basiliskamides A and B.
نویسندگان
چکیده
[structure: see text] The first enantioselective synthesis of the polyketide antibiotics basiliskamides A and B, which exhibit potent in vivo activity against Candida albicans and Aspergillus fumigatus, has been achieved. Serial asymmetric crotylsilane and crotylboronate additions established the C7-C10 stereochemical tetrad. Takai iodoolefination and palladium-mediated cross-coupling were used to install the (Z,E)-vinyl acrylamide. Spectroscopic data is consistent with the assignment of the absolute configurations of the natural products as (7S,8S,9R,10S).
منابع مشابه
Tupuseleiamides and basiliskamides, new acyldipeptides and antifungal polyketides produced in culture by a Bacillus laterosporus isolate obtained from a tropical marine habitat.
Laboratory cultures of PNG 276, a Bacillus laterosporus isolate obtained from coastal waters off Papua New Guinea, have been shown to produce the novel metabolites basiliskamide A (1), basiliskamide B (2), tupuseleiamide A (3), and tupusleiamide B (4). The structures of 1 to 4 were elucidated by analysis of spectroscopic data and chemical degradation. Basiliskamides A (1) and B (2) show potent ...
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ورودعنوان ژورنال:
- Organic letters
دوره 6 20 شماره
صفحات -
تاریخ انتشار 2004