Two novel migrated pimarane-type diterpenes, neoorthosiphols A and B, from the leaves of Orthosiphon aristatus (Lamiaceae)

Chemical and Pharmaceutical Bulletin

Volumn 47, Issue 6, 1999, Pages 911-912

  Shibuya, Hirotaka ^a   Bohgaki, Takako ^a   Ohashi, Kazuyoshi ^a  

^a FUKUYAMA UNIVERSITY   (Japan)

Author keywords

Benzoate chirality; Lamiaceae; Migrated pimarane type diterpene; Neoorthosiphol; Orthosiphon aristatus

Indexed keywords

NEOORTHOSIPHOL A; NEOORTHOSIPHOL B; PLANT EXTRACT; UNCLASSIFIED DRUG;

ARTICLE; DRUG ISOLATION; DRUG MECHANISM; DRUG STRUCTURE; ISOLATION PROCEDURE; NONHUMAN; PHYSICAL CHEMISTRY; PLANT; STRUCTURE ANALYSIS;

EID: 0033050277     PISSN: 00092363     EISSN: None     Source Type: Journal    
DOI: 10.1248/cpb.47.911     Document Type: Article

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4. 3), 2.61 (1H, d, J=13.5 Hz, 5-H), 2.94 (1H, dd, J=3.5, 9.8 Hz, 12-H), 2.98 (1H, d, J=11.0 Hz, 9-H), 3.52 (1H, d, J=3.1 Hz, 3-H), 4.45 (1H, d, J=9.8 Hz, 16-Ha), 4.81 (1H, d, J=16.8 Hz, 16-Hb), 5.07 (1H, ddd, J=9.8, 9.8, 16.8 Hz, 15-H), 5.32 (1H, dd, J=3.1, 3.1 Hz, 2-H), 5.40 (1H, br s, 7-H), 5.82 (1H, d, J= 3.1 Hz, 1-H), 6.30 (1H, dd, J=3.5, 11.0 Hz, 11-H), 7.48 (2H, dd, J= 7.9, 7.9 Hz), 7.61 (1H, dd, J=7.9, 7.9 Hz), 8.24 (2H, d, J=7.9 Hz) (11-COPh), 7.42 (2H, dd, J=7.9, 7.9 Hz), 7.57 (1H, dd, J=7.9, 7.9 Hz), 8.05 (2H, d, J=7.9 Hz) (1-COPh).
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