Conversion of Marcfortine A to Paraherquamide A via Paraherquamide B. The First Formal Synthesis of Paraherquamide A
摘要:
The paraherquamides and marcfortines represent a novel class of anthelmintics. The sole structural difference between paraherquamide A and marcfortine A occurs in ring G. We synthesized paraherquamide B from marcfortine A in six steps. Paraherquamide A was then prepared from paraherquamide B in seven steps. This represents the first formal synthesis of paraherquamide A.
DOI:
10.1021/jo9622791
作为产物:
描述:
溴化氰 、 marcfortine A 以
乙腈 为溶剂,
以84%的产率得到12a-cyano-17-bromo-17,N-seco-marcfortine A