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N-cyclohexyl amides and a dimeric coumarin from formosan Toddalia asiatica
Phytochemistry ( IF 3.2 ) Pub Date : 1997-04-01 , DOI: 10.1016/s0031-9422(96)00724-8 Ian-Lih Tsai , Song-Chwan Fang , Tsutomu Ishikawa , Chin-Teng Chang , Ih-Sheng Chen
Phytochemistry ( IF 3.2 ) Pub Date : 1997-04-01 , DOI: 10.1016/s0031-9422(96)00724-8 Ian-Lih Tsai , Song-Chwan Fang , Tsutomu Ishikawa , Chin-Teng Chang , Ih-Sheng Chen
Abstract Examination of the root wood of Formosan Toddalia asiatica led to the isolation of four N -cyclohexylamides: N , N ′-dicyclohexyloxamide, N , N ′-dicyclohexylurea, toddaliamide, methyltoddaliamide; one dimeric coumarin: toddasiatin; and six alkaloids: skimmianine, norchelerythrine, oxyavicine, avicine, oxynitidine and nitidine, from the tertiary non-phenolic basic fraction. Toddaliamide, methyltoddaliamide and toddasiatin are new compounds while N , N ′-dicyclohexyloxamide and N , N ′-dicyclohexylurea were isolated for the first time from nature. The structures of all the compounds were elucidated by spectral data and chemical evidence.
更新日期：1997-04-01
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