8-Hydroxysalviarin and 7,8-Didehydrorhyacophiline, Two New Diterpenes from <i>Salvia reflexa</i>

Abstract

From the leaves of Salvia reflexa the known neoclerodanes salviarin ( 1 ) and 6β-hydroxysalviarin ( 2 ) have been isolated, together with two new diterpenes, 15,16-epoxy-8α-hydroxyneocleroda-2,13(16),14-triene-17,12 R:18,19-diolide ( 3 ), and the 5,6-secoclerodane, 7,8-didehydrorhyacophiline ( 5 ). The structures of 3 and 5 were deduced from their spectroscopic data.