H. Shigemori et al., BRASILICARDIN-A - A NOVEL TRICYCLIC METABOLITE WITH POTENT IMMUNOSUPPRESSIVE ACTIVITY FROM ACTINOMYCETE NOCARDIA-BRASILIENSIS, Journal of organic chemistry, 63(20), 1998, pp. 6900-6904
A novel tricyclic metabolite, brasilicardin A (1), with potent immunos
uppressive activity has been isolated from the cultured broth of the a
ctinomycete Nocardia brasiliensis IFM 0406, and the structure includin
g absolute stereochemistry was established on the basis of spectroscop
ic data, chemical means, and X-ray analysis. Brasilicardin A (1) is th
e first tricyclic compound consisting of an anti/syn/anti-perhydrophen
anthrene skeleton with a rhamnose, an N-acetylglucosamine, and an amin
o acid moiety.