Esteroides produzidos por penicillium herquei, um fungo endofítico isolado dos frutos de melta azedarach (MELIACEAE)

Abstract

Six compounds comprising the groups of steroids, the ergosterol, the ergosterol peroxide, the cerevisterol, the neociclocitrinols, the ergosta-4,6,8(14),22-tetraen-3-one, the 25-hydroxy-ergosta-4,6,8( 14),22-tetraen-3-one, were isolated from Penicuuum herquei fungus obtained from Melia azedarach. The structures were identified by spectral methods of RMN ID and 2D and MS.