1987
DOI: 10.1016/s0031-9422(00)81779-3
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Two phenolic constituents from Alpinia galanga rhizomes

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Cited by 45 publications
(22 citation statements)
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“…Replacement of the MDP ring by either ethylenedioxyphenyl, 3-methoxy-4-benzyloxyphenyl, 4-methoxyphenyl, 3,4-dimethoxyphenyl, 3,4,5-trimethoxyphenyl and 2,2-dimethyl-3,4-dihydrobenzopyran produced compounds (8,18,22,24,27 and 29) which in general did not in¯uence the inducible AHH while the constitutive one exhibited poor sensitivity compared to strong inhibition elicited by piperine. The inhibitory eect in general was remarkably reduced from null eect in the inducible form to a moderate inhibition in the constitutive enzyme.…”
Section: Structure±activity Relationship Of Substituted Phenylpentadimentioning
confidence: 98%
“…Replacement of the MDP ring by either ethylenedioxyphenyl, 3-methoxy-4-benzyloxyphenyl, 4-methoxyphenyl, 3,4-dimethoxyphenyl, 3,4,5-trimethoxyphenyl and 2,2-dimethyl-3,4-dihydrobenzopyran produced compounds (8,18,22,24,27 and 29) which in general did not in¯uence the inducible AHH while the constitutive one exhibited poor sensitivity compared to strong inhibition elicited by piperine. The inhibitory eect in general was remarkably reduced from null eect in the inducible form to a moderate inhibition in the constitutive enzyme.…”
Section: Structure±activity Relationship Of Substituted Phenylpentadimentioning
confidence: 98%
“…19 From the roots of Alpinia galanga some endophyticactinomycetes (120) has isolated. Based on the morphology and amino acid composition of the whole-cell extracts the identification of these endophytes has done.…”
Section: Taxonomymentioning
confidence: 99%
“…The HMBC correlations of methylene protons at d 4.09 (CH 2 -10Ј) with C-9Ј (d 175.4) and CH 3 -10 (d 3.75) with C-9 (d 170.3) confirmed that the nbutyl ester was connected with C-9Ј. Thus the structure of 3 was assumed to be 3-p-n-butyldihydrocoumaroyloxy methylp-coumarate and named as spiraformin C. In addition, spiraeaine A (5), 27) b-sitosterol (6), 27) bakuchiol (7), 27) glutinol (8), 27) b-amyrin (9), 23) b-sitosterone (10), 28) mixture of b-sitosterol (6) and stigmasterol (11), 27) methyl vanillate (12), 29) methyl ferulate (13), 30) ethyl p-hydroxy-trans-cinnamate (14), 31) ethyl ferulate (15), 32) agrimonolide (16), 33) aurantiamide acetate (17), 34) b-sitosteryl glucoside (18), 27) nonadecyl ferulate (19), 27) nonadecyl-3-(4-hydroxyphenyl)propionate (20), 35) uridine (21), 36) 3-O-b-Dglucoside-p-vanillic acid (22), 37) vanillic acid (23), 26) p-hydroxybenzoic acid (24), 38) veratric acid (25), 38) syringic acid (26), 39) 3-O-b-D-glucoside-4Ј,5-dihydroxystilbene (27), 40) p-hydroxybenzaldehyde (28), 27) 42) p-coumaric acid (34), 42) 3,4Ј,5-trihydroxystilbene (35), 26) p-hydroxycinnamaldehyde (36), 43) quercetin (37), 42) (ϩ)-5,7-dihydroxy-2-(3Ј,4Ј-methylenedioxyphenyl)chroman-4-one (38), 44) and N,N-dimethyladenine (39) 45) were also identified by comparison of their physical and spectral data with those reported in the literature.…”
Section: H 26 O 6 As Determined By Hr-ei-ms ([M]mentioning
confidence: 99%