Abstract:
The aerial parts of Lepechinia caulescens provided the new diterpene 7-beta-hydroxy-abietan-8(14)-en-18-oic acid 9-alpha,13-alpha-endoperoxide which decomposes to 7-beta-hydroxy-8-alpha,9-alpha,13-alpha,14-alpha-diepoxy-abietan-18-oic acid. Several known acids and flavonoids were also isolated from this species.