Roggo B E, Petersen F, Delmendo R, Jenny H B, Peter H H, Roesel J
Biotechnology Research Laboratories, CIBA-GEIGY Limited, Basel, Switzerland.
J Antibiot (Tokyo). 1994 Feb;47(2):136-42. doi: 10.7164/antibiotics.47.136.
In the course of a screening program for HIV-1 protease inhibiting activity, six new homologues of 3-alkanoyl-5-hydroxymethyl tetronic acids (1 approximately 6) and the known natural product resistomycin (7) were isolated from cultures of the Actinomycete strain DSM 7357. The substituted tetronic acids belong to a recently described structural class of secondary metabolites. The HIV-1 activity of resistomycin (7) has not been reported before.