Phytochemistry p. 1541 - 1544 (1985)
Update date:2022-08-02
Topics:
Gao, Feng
Leidig, Mark
Mabry, Tom J.
Key Word Index - Gutierrezia grandis; Compositae; Astereae; ent-labdane derivatives; 3α-angeloyloxy-18-hydroxy-13-furyl-ent-labda-8(17)-ene; 3α-hydroxy-18-angeloyloxy-13-furyl-ent-labda-8(17)-ene; 3α,18-dihydroxy-13-furyl-ent-labda-8(17)-ene. - Two new diterpenes, 3α-angeloyloxy-18-hydroxy-13-furyl-ent-labda-8(17)-ene and 3α-hydroxy-18-angeloyloxy-13-furyl-ent-labda-8(17)-ene and an only recently reported third diterpene, 3α,18-dihydroxy-13-furyl-ent-labda-8(17)-ene, were isolated from the leaves of Gutierrezia grandis.Their structures were determined by mass spectral, IR, 1H NMR and 13C NMR data as well as chemical evidence.
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