Info

FIGURE 15.64 Biotransformation of 6-epi-a-santonin (190) by Absidia coerulea, Asparagus officinalis, Marchantia polymorpha, and Nicotiana tabacum.

derivative (224). The same substrate was also treated in Aspergillus quardilatus (wild type) to give 13-acetyl product (225) (Atta-ur Rahman et al., 1994) (Figure 15.67).

Incubation of (-)-frullanolide (226), obtained from the European liverwort, Frullania tamarisci subsp. tamarisci causes a potent allergenic contact dermatitis, was incubated by Aspergillus niger to give dihydrofrullanolide (227), nonallergenic compound in 31.8% yield. In this case, C11-C13 dihydro derivative was not obtained (Hashimoto et al., 2005).

Was this article helpful?

0 0
Curing Eczema Naturally

Curing Eczema Naturally

Do You Suffer From the Itching, Redness and Scaling of Chronic Eczema? If so you are not ALONE! It strikes men and women young and old! It is not just

Get My Free Ebook


Post a comment