Cyclobutanoid amides from Piper arborescens
Cyclobutanoid amides from Piper arborescens
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DOI:
10.1002/hlca.200490044
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发表时间:
2004-01-01
影响因子:
1.8
通讯作者:
Chen, IS
中科院分区:
文献类型:
--
作者:
Lee, FP;Chen, YC;Chen, IS
Two new cyclobutanoid amides, piperarborenine A (= 1,1'-{[1alpha,2alpha,3beta,4beta)-2,4-bis(3,4-dimethoxyphenyl)cyclobutane-1,3-diylldicarbonyl)bis[5,6-dihydropyridin-2(1H)-one]; 1) and piperarborenine B (=1,1'{[(1alpha,2alpha,3beta,4beta)-2-(3,4-dimethoxyphenyl)-4-(3,4,5-trimethoxyphenyl)cyclobutane-1,3-diyl]dicarbonyl)bis[5,6-dihydropyridin-2(1H)-one]; 2) were isolated from the stem of Piper arborescens, besides two known cyclobutanoid amides, piperarboresine ( 1,1'-([(1alpha,2alpha,3beta,4beta)-2-(7-methoxy-1,3-benzodioxol-5-yl)-4-(3,4,5-trimethoxyphenyl)cyclobutane-1,3-diylldicarbonyl)bis[5,6-dihydropyridin-2(1H)-one]; 3) and piplartine-dimer A (= 1,1'-([(1alpha,2alpha,3beta,4beta)-2,4-bis(3,4,5-trimethoxyphenyl)cyclobutane-1,3-diyl]dicarbonyl}bis[5,6-dihydropyridin-2(1H)-one]; 4). The structures of the two new compounds were determined by spectral analyses.