An efficient and highly diastereoselective synthesis of 2-substituted benzo[b]azepin-5-ol via stereocontrolled addition of Grignard reagents to oxa-bridged benzazepines has been developed. The reaction proceeds efficiently starting from versatile skeletons with mild reaction conditions as well as simple operation. Furthermore, 2-substituted benzazepinones could been obtained by simple Dess–Martin oxidation
已经开发出通过将格氏试剂立体控制地添加到氧杂桥联苯并氮杂来高效且高度非对映选择性地合成 2-取代苯并[ b ]azepin-5-ol 。该反应从具有温和反应条件和简单操作的多功能骨架开始有效地进行。此外,2-取代的苯并氮杂酮可以通过简单的 Dess-Martin 氧化以优异的收率获得。
HETEROCYCLIC COMPOUNDS AS RSV INHIBITORS
申请人:Enanta Pharmaceuticals, Inc.
公开号:US20190002479A1
公开(公告)日:2019-01-03
The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit Respiratory Syncytial Virus (RSV). The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from RSV infection. The invention also relates to methods of treating an RSV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Tricyclic-isoxazolidine analogues via intramolecular 1,3-dipolar cycloaddition reactions of nitrones
作者:Simon Saubern、James M. Macdonald、John H. Ryan、Ruth C.J. Woodgate、Theola S. Louie、Matthew J. Fuchter、Jonathan M. White、Andrew B. Holmes
DOI:10.1016/j.tet.2010.01.062
日期:2010.4
tetrahydroisoxazolepyranopyridines were prepared by an intramolecular 1,3-dipolar cycloaddition reaction of a nitrone with an alkene. For N-alkylated hexahydroisoxazolequinolines, reduction of the reaction time from two days to 40 min was achieved using microwave heating. The cyclization to form tetrahydroisoxazolepyranopyridines only proceeded when the alkene was substituted with an electron withdrawing group.
The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit Respiratory Syncytial Virus (RSV). The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from RSV infection. The invention also relates to methods of treating an RSV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.