The microbial transformation of sclareolide (1) by Curvularia lunata afforded five oxidized metabolites identified as 3-ketosclareolide (2), 1 beta-hydroxysclareolide (3), 3 beta-hydroxysclareolide (4), 1 alpha,3 beta-dihydroxysclareolide (5), and 1 beta,3 beta-dihydroxysclareolide (6). Fermentations of 1 with Aspergillus niger also produced metabolites 2-6. Metabolites 2-5 were obtained by fermention with Gibberella fujikuroii, while fermentation with Fusarium lini afforded metabolites 4 and 5.
Microbial transformation of diterpenes: Hydroxylation of sclareol, manool and derivatives by Mucor plumbeus
作者:Gérard Aranda、Mohammed Samir El Kortbi、Jean-Yves Lallemand、Alain Neuman、Abderrahmane Hammoumi、Isabelle Facon、Robert Azerad
DOI:10.1016/s0040-4020(01)96175-7
日期:1991.9
Microbialtransformation of several labd-14-ene derivatives has been carried out with a Mucor plumbeus strain, Sclareol (1) (labd-14-en-8α,13β-diol) affords quantitatively a mixture of triols from which the labd-14-en-3β,8α,13β-triol (2) is obtained in high yield. Incubation of other labdane derivatives, including manool (6) [labd-8(17),14-dien-13β-ol], the corresponding 7α-hydroxy derivative (10)