[EN] PROCESSES FOR THE PREPARATION OF S1P1 RECEPTOR MODULATORS AND CRYSTALLINE FORMS THEREOF [FR] PROCÉDÉS DE SYNTHÈSE DE MODULATEURS DES RÉCEPTEURS S1P1 ET LEURS FORMES CRISTALLINES
Complementary Asymmetric Routes to (<i>R</i>)-2-(7-Hydroxy-2,3-dihydro-1<i>H</i>-pyrrolo[1,2-<i>a</i>]indol-1-yl)acetate
作者:Thomas O. Schrader、Benjamin R. Johnson、Luis Lopez、Michelle Kasem、Tawfik Gharbaoui、Dipanjan Sengupta、Daniel Buzard、Christine Basmadjian、Robert M. Jones
DOI:10.1021/ol303070k
日期:2012.12.21
the tricyclic indole (R)-2-(7-hydroxy-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate, an important synthon for a preclinical S1P1 receptor agonist, are reported. Route 1 employs a modified version of Smith’s modular 2-substitutedindole synthesis as the key transformation. Route 2 involves a highly enantioselective CuH-catalyzed 1,4-hydrosilylation as the stereodefining step. Both routes can be performed
对三环吲哚(R)-2-(7-羟基-2,3-二氢-1 H-吡咯并[1,2 - a ]吲哚-1-基)乙酸酯(一种重要的合成子)的两种不同且可扩展的对映选择性方法报道了临床前S1P 1受体激动剂。路线1采用Smith的模块2取代的吲哚合成的修改版本作为关键转换。路线2涉及高度对映选择性的CuH催化的1,4-氢化硅烷化作为立体定义步骤。两种方法都可以在不进行色谱的情况下进行,以提供≥98%ee的三克多克量。
PROCESSES FOR THE PREPARATION OF S1P1 RECEPTOR MODULATORS AND CRYSTALLINE FORMS THEREOF
申请人:Jones Robert M.
公开号:US20120329848A1
公开(公告)日:2012-12-27
The present invention relates to salts, processes, and process intermediates useful in the preparation of (R)-2-(9-chloro-7-(4-isopropoxy-3-(trifluoromethyl)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic acid of Formula (Ia), salts, and crystalline forms thereof. The compound (R)-2-(9-chloro-7-(4-isopropoxy-3-(trifluoromethyl)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic acid has been identified as an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions eases characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development, and atherosclerosis).