Allylic oxidation of ent-Kaurenic acid, ent-Kaurenic acid Methyl Ester and ent-Kaurenol

by Rosa Aparicio, Ali Bahsas, Alfredo Usubillaga
Published 2007-12-01

Ent-15α-(3-methoxy-3-methyl-butanoyl)-kaur-16-en-19-oic acid a new ent-kaurenic acid derivative isolated from Coespeletia moritziana (Sch. Bip. ex Wedd) Cuatrec. (Asteraceae)

by Alfredo Usubillaga, Libia Alarcón, Alexis Peña
Published 2008-12-01

Análisis de los ácidos kaurénicos presentes en Espeletiopsis angustifolia Cuatrec. de los Andes venezolanos

by Juan Carmona, Alfredo Usubillaga, Luis Rojas, Patricia Quintero, Gina Meccia
Published 2010-05-01

On the allylic hydroxylation of ent-kaurenic acid with SeO2

by Alexis Peña, Libia Alarcón, Rosa Aparicio, Julio Rojas, Alfredo Usubillaga
Published 2014-12-01

A Phytochemical Analysis of Espeletia nana Cuatrec. a Midget Espeletiinae from Paramo Ortiz, Venezuela

by Alexis Peña, Libia Alarcón, José Gregorio Baptista, Rosa Aparicio, Thayded Villasmil, Alfredo Usubillaga
Published 2012-12-01

Caracterización química y actividad antimicrobiana del aceite esencial de las hojas de Libanothamnus neriifolius (Asteraceae)

by Rosa Aparicio-Zambrano, Luis Rojas-Fermín, Judith Velasco, Alfredo Usubillaga, Marcos Sosa, Julio Rojas
Published 2019-03-01

Structure of ent-15-hydroxy-kaur-16-en-19-oic acid

by Julia Bruno-Colmenarez, Graciela Díaz De Delgado, Alexis Peña, Libia Alarcon, Alfredo Usubillaga, Paulino Delgado-Méndez
Published 2011-10-01