期刊
HETEROCYCLES
卷 85, 期 12, 页码 2927-2932出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.3987/COM-12-12599
关键词
Esermethole; [2+2] Cycloaddition Reaction; Carbamoylketene; Palladium-Catalyzed Coupling Reaction; Nitrone
资金
- JSPS [22-9957]
- Program for Promotion of Basic and Applied Research for Innovations in the Bio-oriented Industry (BRAIN)
- Grants-in-Aid for Scientific Research [10J09957] Funding Source: KAKEN
A synthesis of (+/-)-esermethole (2), a synthetic precursor of physostigmine (1), has been accomplished by using an intramolecular carbamoylketene-alkene [2+2] cycloaddition followed by nitrone-mediated regioselective ring expansion for the construction of the basic carbon framework of 2 as the key steps.
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