Total Synthesis of Waltherione F, a Nonrutaceous 3-Methoxy-4-quinolone, Isolated from <i>Waltheria indica</i> L. F.
作者:Abel A. Arroyo Aguilar、Santiago J. Bolívar Avila、Teodoro S. Kaufman、Enrique L. Larghi
DOI:10.1021/acs.orglett.8b02221
日期:2018.8.17
Waltherione F was totally synthesized in seven steps and 31% overall yield from 2-nitro-3-methylanisole without the use of protecting groups. Key steps in the sequence were a Suzuki–Miyaura coupling to attach the n-octyl chain and a microwave-promoted cyclization of an acetonyl anthranilate to give the heterocyclic core whose 3-OH was O-methylated.
Substituted pyrrolopyridinone derivatives useful as phosphodiesterase inhibitors
申请人:Sui Zhihua
公开号:US20050113402A1
公开(公告)日:2005-05-26
The invention relates to novel pyrrolopyridinone derivatives of the formula (I) or (II):
pharmaceutical compositions containing the compounds and their use for the treatment of sexual dysfunction.
Provided is a compound represented by the following formula (1) or a salt thereof, which has an SSTR5 antagonistic action: wherein each symbol has the same definition as in the specification.