Heterocyclizations in the pyrido[2,3-<i>b</i>]pyrazine series
作者:Y. Blache、A. Gueiffier、O. Chavignon、J. C. Teulade、J. C. Milhavet、H. Viols、J. P. Chapat、G. Dauphin
DOI:10.1002/jhet.5570310127
日期:1994.1
the results of heterocyclizations in the pyrido[2,3-b]pyrazine series to give the pyrido[2,3-e] or [3,2-e]pyrrolo[1,2-a]pyrazine. The Clauson-Kaas reaction on 2,3-diaminopyridine is investigated; regioselectivity on the 3-amino group is shown by 1H- and 13C-nmr. Synthesis and reactivity of the original pyrazino[2,3-g]indolizine series is also reported.
在本文中,我们报告了吡啶并[2,3- b ]吡嗪系列中杂环化的结果,从而得到了吡啶并[2,3- e ]或[3,2- e ]吡咯并[1,2- a ]吡嗪。研究了2,3-二氨基吡啶上的克劳森-卡斯反应。3-氨基上的区域选择性由1 H-和13 C-nmr表示。还报道了原始吡嗪并[2,3- g ]吲哚嗪系列的合成和反应性。
KAPPA OPIOID RECEPTOR EFFECTORS AND USES THEREOF
申请人:Aube Jeffrey
公开号:US20140371227A1
公开(公告)日:2014-12-18
The present invention is a selective kappa opioid receptor effector, or a pharmaceutically acceptable salt thereof, useful for treating ethanol use disorder withdrawal, anxiety and/or depression, schizophrenia, mania or post-traumatic stress disorder.
ketones, and heterocycles has been studied constantly in recent decades. Herein, a direct method using trifluoroacetic acid as a CF3 source for the synthesis of 2-(trifluoromethyl)quinazolin-4-ones and 4-(trifluoromethyl)pyrrolo/indolo[1,2-a]quinoxalines without any catalysts or additives is reported; a wide range of fluorinated compounds were obtained in 52%–94% yield.
三氟甲基仅存在于合成化合物中。由于该组独特的生物活性,近几十年来一直在不断研究烷烃、芳烃、烯烃、醛和酮等不饱和化合物以及杂环的三氟甲基化。在此,使用三氟乙酸作为 CF 3源用于合成 2-(三氟甲基)喹唑啉-4-酮和 4-(三氟甲基)吡咯并/吲哚并[1,2- a ]喹喔啉的直接方法是,无需任何催化剂或添加剂。报告;以 52%–94% 的收率获得了范围广泛的含氟化合物。
LANCELOT, J. -CH.;LADUREE, D.;ROBBA, M., CHEM. AND PHARM. BULL., 1985, 33, N 8, 3122-3128
作者:LANCELOT, J. -CH.、LADUREE, D.、ROBBA, M.
DOI:——
日期:——
PEET N. P.; SUNDER SH., HETEROCYCLES, 24,(1986) N 11, 3213-3221