A concise synthesis of chiral indanes as α 1A adrenoceptor partial agonists
摘要:
The synthesis of a series of chiral indanes with reported am partial agonist activity is outlined, applying a rhodium catalysed cyclisation for template construction. This method was extended to the asymmetric synthesis of lead compound PF-03774076 (1) which was prepared on >20 g scale in seven steps. Highlights include Rh-mediated cyclocarbonylation and an asymmetric alkene hydrogenation. (C) 2015 Elsevier Ltd. All rights reserved.
A concise synthesis of chiral indanes as α 1A adrenoceptor partial agonists
摘要:
The synthesis of a series of chiral indanes with reported am partial agonist activity is outlined, applying a rhodium catalysed cyclisation for template construction. This method was extended to the asymmetric synthesis of lead compound PF-03774076 (1) which was prepared on >20 g scale in seven steps. Highlights include Rh-mediated cyclocarbonylation and an asymmetric alkene hydrogenation. (C) 2015 Elsevier Ltd. All rights reserved.
An improved synthesis of a novel α1A partial agonist including a new two-step synthesis of 4-fluoropyrazole
作者:Katherine England、Helen Mason、Rachel Osborne、Lee Roberts
DOI:10.1016/j.tetlet.2010.03.080
日期:2010.5
This Letter outlines a new two-step process for the synthesis of 4-fluoropyrazole and its application in an improved synthesis of 4-fluoro-1-[5-fluoro-1-(1H-imidazol-2-yl)-indan-4-ylmethyl]-1H-pyrazole. The original synthesis of 4-fluoro-1-[5-fluoro-1-(1H-imidazol-2-yl)-indan-4-ylmethyl]-1H-pyrazole is also described.