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Noroleanane Triterpenoids from the Aerial Parts of Lantana camara
Author(s) -
Begum Sabira,
Zehra Syeda Qamar,
Hassan Syed Imran,
Siddiqui Bina S.
Publication year - 2008
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200890050
Subject(s) - lantana camara , chemistry , triterpenoid , stereochemistry , triterpene , terpene , oleanolic acid , botany , medicine , alternative medicine , pathology , biology
Two novel triterpenoids, lantadienone ( 1 ) and camaradienone ( 2 ), were isolated from the aerial parts of Lantana camara , along with seven known compounds, lantadene A, lantadene B, β ‐sitosterol 3‐( β ‐ D ‐glucopyranoside), camaric acid, lantanilic acid, lantanolic acid, and camangeloyl acid. Their structures were elucidated as (3 β ,22 β )‐3,25‐epoxy‐3‐hydroxy‐22 ‐ {[(2 Z )‐2‐methyl‐1‐oxobut‐2‐enyl]oxy}‐28‐noroleana‐12,17‐dien‐11‐one ( 1 ) and (3 β )‐3,25‐epoxy‐3‐hydroxy‐28‐noroleana‐12,17‐dien‐11‐one ( 2 ), respectively, by means of spectral studies. The triterpenoids 1 and 2 represent 28‐noroleananes oxidized at C(11) and C(22) or at C(11), reported for the first time.