Asymmetric Synthesis of Silanediol Inhibitors for the Serine Protease Coagulation Cascade Enzyme FXIa
作者:Hoan Q. Duong、Scott McN. Sieburth
DOI:10.1021/acs.joc.8b00116
日期:2018.5.18
Silanediol peptidomimetics have been prepared, designed to inhibit the serineprotease enzyme Factor XIa (FXIa) for treatment of thrombosis without complete interruption of normal hemostasis. These Arg-[Si]-Ala analogues of the FXIa substrate (FIX) are the first silanediol dipeptide analogues to carry a basic guanidine group. Control of stereochemistry was accomplished using catalytic asymmetric hydrosilylation
Alpha-amino silanes via metalated imines as an approach to the synthesis of silanediol protease inhibitors
作者:Yingjian Bo、Paul B. Finn、Buddha B. Khatri、Scott McN. Sieburth
DOI:10.1016/j.tet.2013.06.022
日期:2013.9
Metalation of benzophenone imines for elaboration of the alpha-amino silane component of silanediol-based protease inhibitors allows for rapid diversification of targets. Coupling this chemistry with recently developed asymmetric hydrosilylation chemistry for preparing beta-silyl acids results in a streamlined process for drug design. (C) 2013 Elsevier Ltd. All rights reserved.
Efficient, Enantioselective Assembly of Silanediol Protease Inhibitors
A five-step assembly of silicon-protected dipeptide mimics fromcommerciallyavailable reagents is described. This methodology makes silanediol protease inhibitors readily available for the firsttime. The sequence features asymmetric hydrosilylation, a novel reduction of a silyl ether to a silyllithium reagent, and addition of this dianion to a sulfinimine, to produce the complete inhibitor skeleton