[Problem]
An excellent drug for treating or preventing cardiovascular diseases, based on cGMP production enhancing action due to soluble guanylate cyclase activating action, is provided.
[Means for Solution]
It was found that imidazopyridine compounds having a carbamoyl group at the 3-position and a substituent bonded at the 8-position via an oxygen atom in an imidazo[1,2-a]pyridine skeleton exhibits a cGMP production enhancing action by a potent soluble guanylate cyclase activating action, and is useful as a drug for treating or preventing various soluble guanylate cyclase-related cardiovascular diseases, thereby completing the present invention.
Highly enantioselective routes to darzens and acetate aldol products from achiral aldehydes and t-butyl bromoacetate
作者:E.J. Corey、Soongyu Choi
DOI:10.1016/0040-4039(91)80631-f
日期:1991.6
New methodology is described for the enantioselective coupling of t-butyl bromoacetate with aldehydes to give anti-alpha-bromo beta-hydroxy esters (1), useful precursors of chiral glycidic esters (2), acetate aldols (3), beta-amino acid esters (4) and alpha-amino acid esters (5).
US9447090B2
申请人:——
公开号:US9447090B2
公开(公告)日:2016-09-20
Trading N and O: asymmetric syntheses of β-hydroxy-α-amino acids via α-hydroxy-β-amino esters
作者:Stephen G. Davies、Ai M. Fletcher、Aileen B. Frost、James A. Lee、Paul M. Roberts、James E. Thomson
DOI:10.1016/j.tet.2013.08.007
日期:2013.10
the C(2)-position via a sequential oxidation/diastereoselective reduction protocol gave the corresponding enantiopure 2,3-syn-α-hydroxy-β-amino esters in >99:1 dr. These syn- and anti-substrates were then converted into the corresponding N-Boc protected cis- and trans-aziridines, respectively, via a three step reaction sequence: (i) hydrogenolysis and in situ N-Boc protection; (ii) OH-activation; and