TY - JOUR
T1 - Two new diterpenoids from Plectranthus nummularius BRIQ
AU - Narukawa, Y.
AU - Shimizu, N.
AU - Shimotohno, K.
AU - Takeda, T.
PY - 2001
Y1 - 2001
N2 - Two new antioxidative diterpenoids, plectranthol A (3)[19-O-(3,4-dihydroxybenzoyl)-11,12-dihydroxy-20(10→5)-abeo-abieta- 1(10),6,8,11,13-tetraene] and plectranthol B (4)[12-O-(3-methyl-2-butenoyl)-19-O-(3, 4-di-hydroxybenzoyl)-11-hydroxyabieta- 8,11,13-triene] along with two known diterpenoids, parvifloron E (1) and F (2) were isolated from the leaves of Plectranthus nummularius BRIQ. Antioxidative activities of the compounds were measured by the α,α-diphenyl-β-picrylhydrazyl (DPPH) method.
AB - Two new antioxidative diterpenoids, plectranthol A (3)[19-O-(3,4-dihydroxybenzoyl)-11,12-dihydroxy-20(10→5)-abeo-abieta- 1(10),6,8,11,13-tetraene] and plectranthol B (4)[12-O-(3-methyl-2-butenoyl)-19-O-(3, 4-di-hydroxybenzoyl)-11-hydroxyabieta- 8,11,13-triene] along with two known diterpenoids, parvifloron E (1) and F (2) were isolated from the leaves of Plectranthus nummularius BRIQ. Antioxidative activities of the compounds were measured by the α,α-diphenyl-β-picrylhydrazyl (DPPH) method.
KW - Abietane type diterpenoid
KW - Antioxidative activity
KW - Labiatae
KW - Plectranthus nummularius
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U2 - 10.1248/cpb.49.1182
DO - 10.1248/cpb.49.1182
M3 - Article
C2 - 11558608
AN - SCOPUS:0034844047
VL - 49
SP - 1182
EP - 1184
JO - Chemical and Pharmaceutical Bulletin
JF - Chemical and Pharmaceutical Bulletin
SN - 0009-2363
IS - 9
ER -