Biotransformation of cadinane sesquiterpenes by Beauveria bassiana ATCC 7159
摘要:
Incubation of cadina-4.10(15)-dien-3-one with Beauveria bassiana ATCC 7159 has resulted in the production of nine novel sesquiterpenes. These metabolites were identified as (4S)-cadin-10(15)-en-3-one, (4S)-3 alpha-hydroxycadin-10(15)-ene, (4R)-3 alpha-hydloxycadin-10(15)-ene, (4S)-3 beta-hydroxycadin-10(15)-ene, (4S)-3 beta-hydroxycadina-10(15),12(14)-diene, (4S)-13-hydroxycadin-10(15)-en-3-one, (4S)-12-hydroxycadin-10(15)-en-3-one, (4R)-3 beta,14-dihydroxycadin-10(15)-ene and 3 alpha-hydroxycadina-4,10(15)diene. The allylic alcohol 3 alpha-hydroxycadina-4 10(15)-diene was also biotransformed to afford cadina-4,10(15)-dien-3-one, (4S)-cadin-10(15)-en-3-one and (4S)-12-hpdroxycadin-10(15)-en-3-one. The insecticidal potential and phytotoxicity of the isolated metabolites have been evaluated, (C) 2000 Elsevier Science Ltd. All rights reserved.
Biotransformation of cadinane sesquiterpenes by Beauveria bassiana ATCC 7159
摘要:
Incubation of cadina-4.10(15)-dien-3-one with Beauveria bassiana ATCC 7159 has resulted in the production of nine novel sesquiterpenes. These metabolites were identified as (4S)-cadin-10(15)-en-3-one, (4S)-3 alpha-hydroxycadin-10(15)-ene, (4R)-3 alpha-hydloxycadin-10(15)-ene, (4S)-3 beta-hydroxycadin-10(15)-ene, (4S)-3 beta-hydroxycadina-10(15),12(14)-diene, (4S)-13-hydroxycadin-10(15)-en-3-one, (4S)-12-hydroxycadin-10(15)-en-3-one, (4R)-3 beta,14-dihydroxycadin-10(15)-ene and 3 alpha-hydroxycadina-4,10(15)diene. The allylic alcohol 3 alpha-hydroxycadina-4 10(15)-diene was also biotransformed to afford cadina-4,10(15)-dien-3-one, (4S)-cadin-10(15)-en-3-one and (4S)-12-hpdroxycadin-10(15)-en-3-one. The insecticidal potential and phytotoxicity of the isolated metabolites have been evaluated, (C) 2000 Elsevier Science Ltd. All rights reserved.
Biotransformation of squamulosone by Curvularia lunata ATCC 12017
作者:Dwight O Collins、Greg O Buchanan、William F Reynolds、Paul B Reese
DOI:10.1016/s0031-9422(01)00060-7
日期:2001.6
Squamulosone (aromadendr-1(10)-en-9-one). isolated in large quantity from the plant Hyptis verticillata Jacq. (Labiatae), was incubated with the fungus Curvularia lunata ATCC 12017 in two different growth media. Six metabolites were isolated from each medium, with five of the products being common to both fermentations. All seven metabolites are novel. The insecticidal activity of these aromadendranes was evaluated against the sweet potato weevil Cylas formicarius elegantulus. (C) 2001 Elsevier Science Ltd. All rights reserved.
Biotransformation of cadina-4,10(15)-dien-3-one and 3α-hydroxycadina-4,10(15)-diene by Curvularia lunata ATCC 12017
作者:Dwight O Collins、Paul B Reese
DOI:10.1016/s0031-9422(01)00487-3
日期:2002.3
Cadina-4,10(15)-dien-3-one (1) was metabolised by Curvularia lunata ATCC 12017 in two different growth media to give three metabolites, one of which, 12-hydroxycadina-4,10(15)-dien-3-one (4), was new. Incubation of 3a-hydroxycadina-4,10(15)-diene (2) with the fungus produced three new analogues, namely, (4S)-1alpha,3alpha-dihydroxycadin-10(15)-ene (5), 3alpha,14-dihydroxycadina-4,10(15)diene (6) and 3alpha, 12-dihydroxycadina-4,10(15)-diene (7). (C) 2002 Elsevier Science Ltd. All rights reserved.