The first total and unequivocal syntheses of (R)- and (S)-norneoenactin A (1), an analog of the antifungal antibiotic neoenactin A, are described. The key step of each synthesis was the Michael addition of a serinehydroxamate (5 or 8) to the appropriate vinyl ketone 4. Biological activity of the two enantiomers of norneoenactin A ((S)-1 and (R)-1) against Escherichia coli and several fungi has been investigated.
The first total and unequivocal syntheses of (R)- and (S)-norneoenactin A (1), an analog of the antifungal antibiotic neoenactin A, are described. The key step of each synthesis was the Michael addition of a serinehydroxamate (5 or 8) to the appropriate vinyl ketone 4. Biological activity of the two enantiomers of norneoenactin A ((S)-1 and (R)-1) against Escherichia coli and several fungi has been investigated.
PRATAP, G.;SHANTHA, K. L.;BHASKAR, RAO V. S., FETT WISS. TECHNOL., 91,(1989) N, C. 68-72
作者:PRATAP, G.、SHANTHA, K. L.、BHASKAR, RAO V. S.
DOI:——
日期:——
Synthesis of the antifungal agent norneoenactin A
作者:Ihab S. Darwish、Chetna Patel、Marvin J. Miller
DOI:10.1021/jo00074a038
日期:1993.10
The first total and unequivocal syntheses of (R)- and (S)-norneoenactin A (1), an analog of the antifungal antibiotic neoenactin A, are described. The key step of each synthesis was the Michael addition of a serinehydroxamate (5 or 8) to the appropriate vinyl ketone 4. Biological activity of the two enantiomers of norneoenactin A ((S)-1 and (R)-1) against Escherichia coli and several fungi has been investigated.