期刊
ORGANIC LETTERS
卷 23, 期 16, 页码 6222-6226出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c01045
关键词
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资金
- Gansu Province Science Foundation for Distinguished Young Scholars [20JR5RA304]
- Recruitment Program of Global Experts
The proposed structures of parvistemoamide have been achieved by macrolactamization, but characterization data of synthetic samples did not match with those of the natural sample. The transformation of the highly strained 10-membered lactam ring in parvistemoamide into the pyrrolo[1,2-alpha]-azepine nucleus in stemoamide is accomplished for the first time by either transannular cyclization or Pilli's transformation. This research may promote the total synthesis of other more complex stemoamide-type or medium-sized-ringcontaining Stemona alkaloids.
The proposed structures of parvistemoamide have been achieved by macrolactamization, but none of the characterization data of synthetic samples matched with those of the natural sample. The transformation of the highly strained 10-membered lactam ring in parvistemoamide into the pyrrolo[1,2-alpha]-azepine nucleus in stemoamide is accomplished for the first time by either transannular cyclization or Pilli's transformation. This research may promote the total synthesis of other more complex stemoamide-type or medium-sized-ringcontaining Stemona alkaloids.
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