THE ALKALOIDS OF CRINUM-AUGUSTUM .1. 2 NON-HYDROXYLATED ALKALOIDS IN CRINUM-AUGUSTUM
THE ALKALOIDS OF CRINUM-AUGUSTUM .1. 2 NON-HYDROXYLATED ALKALOIDS IN CRINUM-AUGUSTUM
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DOI:
10.1016/0031-9422(81)83039-7
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发表时间:
1981-01-01
期刊:
影响因子:
3.8
通讯作者:
RAMADAN, MA
中科院分区:
文献类型:
--
作者:
ALI, AA;KATING, H;RAMADAN, MA
Several alkaloids were isolated from C. augustum grown in Assiut, Egypt. Two were identified as lycorine and buphanisine. In addition 2 new non-hydroxylated alkaloids of identical molecular formula C17H19NO4 were investigated by spectroscopic methods. The gross structure of the first, termed augustine, belongs to the 1,2-epoxy-5,10-b-ethanophenanthridine type. In contrast, the second could not be related to any of the known alkaloid types of the Amaryllidaceae.