SF2446, new benzo(a)naphthacene quinone antibiotics. II. The structural elucidation.
- 1 January 1988
- journal article
- research article
- Published by Japan Antibiotics Research Association in The Journal of Antibiotics
- Vol. 41 (4), 425-432
- https://doi.org/10.7164/antibiotics.41.425
Abstract
Structures of new antibiotics SF2446A1, A2, A3, B1, B2 and B3 have been deduced by means of spectral analyses and chemical studies. The structure of SF2446A1 which is a main product of fermentation and has the strongest antimicrobial activity, has been proposed to be 11-(2,4-di-O-methyl-.beta.-L-rhamnopyranosyl)amino-5,6,6a,14a-tetrahydro-1,6,8,14a-tetrahydroxy-6a-methoxy-2-methoxycarbonyl-3-methyl-benzo[a]naphthacene-7,9,12,14-tetraone. All of antibiotics have a novel benzo[a]naphthacene quinone skeleton and SF2446A1, A2, B1 and B2 have an N-glycosidic linkage with 2,4-di-O-methyl-L-rhamnose.This publication has 4 references indexed in Scilit:
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