摘要 | From the twigs of Amoora stellato-squamosa, five new neoclerodane diterpenes have been isolated and characterized, methyl (13E)-2-oxoneocleroda-3,13-dien-15-oate (= methyl (2E)-3-methyl-5-[(1S,2R,4aR,8aR)-1,2,3,4,4a,7,8,8a-octahydro-1,2,4a,5-tetramethyl-7-oxo-naphthalen-1-yl]pent-2-enoate; 1), (13E)-2-oxoneocler4.4a.7.8-tetramethylnaphthalen-2(1H)-one; 2), (3alpha,4beta,13E)-neoclerod-13-ene-3,4,15-triol (=(1R,2R,4aR, PF 5S,6R,8aR)-decahydro-5-[(E)-5-hydroxy-3-methylpent-3-enyl]-1,5,6,8a-tetramethylnaphthalene-1,2-diol; 3), (3alpha,Abeta 13E)-4-ethoxyneoclerod-13-ene-3,15 -diol (=(1R.2R.4aR,5S,6R,8aR)-l-ethoxydecahydro-5-[(E)-5-hydroxy-3-methylpent-3-enyl]-1,5,6,8a-tetramethylnaphthalen-2-ol; 4), and (3alpha,4beta,14RS)-neoclerod-13(16)ene-3,4,14.15-tetrol (=(IR,2R,4aR,5S,6R,8aR)-decahydro-5-[3-(1,2-dihydroxyethyl)but-3-enyl]-1,5,6,8a-tetramethylnaphthalene-1,2-diol; 5), together with two known compounds, (13E)-neocleroda-3,13-diene-15,18-diol (6) and (13S)-2-oxoneocleroda-3,14-dien-13-ol (7). |
APA |
Yang, SM,Wu, SH,Qin, XD,Luo, XD,&Wu, DG.(2004).Neoclerodane diterpenes from Amoora stellato-squamosa.HELVETICA CHIMICA ACTA,87(5),1279-1286.
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