A practical asymmetric synthesis of (R)-fluoxetine and its major metabolite (R)-norfluoxetine
摘要:
A convenient and chromatography-free synthesis for the enantiomers of fluoxetine and norfluoxetine is described. The synthesis relied on the use of the CBS reduction, and Hofman rearrangement to establish the key common intermediate 5, and enrichment of optical purity of the final product by crystallization as the tartrate salt. (C) 2001 Elsevier Science Ltd. All rights reserved.
A highly efficient asymmetric hydrogenation of a series of γ-keto acid derivatives, including γ-keto acids, esters, and amides, using a Ni-(R,R)-QuinoxP* complex as the catalyst has been developed to afford chiral γ-hydroxy acid derivatives with excellent enantioselectivities, up to 99.9% ee. This method provides not only an economical one-pot approach for the synthesis of chiral γ-lactones but also
使用 Ni-( R , R )-QuinoxP* 配合物作为催化剂,开发了一系列 γ-酮酸衍生物(包括 γ-酮酸、酯和酰胺)的高效不对称氢化,以提供手性 γ-具有优异对映选择性的羟基酸衍生物,高达 99.9% ee。该方法不仅为合成手性 γ-内酯提供了一种经济的一锅法,而且还提供了 ( S )-去甲氟西汀(一种神经血清素再摄取抑制剂和药物合成的重要中间体)。
Compositions comprising and methods of using norfluoxetine
申请人:Currie G. Mark
公开号:US20070078188A1
公开(公告)日:2007-04-05
The invention encompasses methods of using racemic and enantiomerically pure norfluoxetine, as well as pharmaceutical compositions, pharmaceutical unit dosage forms, and kits comprising racemic and enantiomerically pure norfluoxetine. In particular, the invention encompasses a method of inhibiting or reducing the production of PGE
2
. The invention further encompasses a method of treating or preventing inflammation in a patient, as well as a method of treating or preventing a disease or disorder such as, but not limited to, autoimmune diseases, arthritis, neurologic diseases, inflammatory diseases, fibromyalgia, pain resulting from inflammation, neuropathic pain, and cancer.
Enantioselective C(sp<sup>3</sup>)–H Functionalization of Oxacycles via Photo-HAT/Nickel Dual Catalysis
作者:Sheng Xu、Yuanyuan Ping、Wei Li、Haoyun Guo、Yinyan Su、Ziyang Li、Minyan Wang、Wangqing Kong
DOI:10.1021/jacs.2c12481
日期:2023.3.8
The selective functionalization of ubiquitous but inert C–H bonds is highly appealing in synthetic chemistry, but the direct transformation of hydrocarbons lacking directing groups into high-value chiral molecules remains a formidable challenge. Herein, we develop an enantioselective C(sp3)–H functionalization of undirected oxacycles via photo-HAT/nickel dualcatalysis. This protocol provides a practical