在此,我们报道了对丙烷磺酸和环丙烷苯甲醛与N-苄基苯胺的对甲苯磺酸(PTSA)引发的温和且用户友好的开环/多米诺环开环反应(取决于N-苄基苯胺中存在的取代基) 4-氨基丁醛/ 2,3-二氢-1 H-苯并[ b ]氮杂。产物二氢-1 H-苯并[ b ]氮杂也被转化为相应的四氢-1 H-苯并[ b ]氮杂。
在此,我们报道了对丙烷磺酸和环丙烷苯甲醛与N-苄基苯胺的对甲苯磺酸(PTSA)引发的温和且用户友好的开环/多米诺环开环反应(取决于N-苄基苯胺中存在的取代基) 4-氨基丁醛/ 2,3-二氢-1 H-苯并[ b ]氮杂。产物二氢-1 H-苯并[ b ]氮杂也被转化为相应的四氢-1 H-苯并[ b ]氮杂。
Discovery of Conformationally Restricted Human Glutaminyl Cyclase Inhibitors as Potent Anti-Alzheimer’s Agents by Structure-Based Design
作者:Van-Hai Hoang、Van T. H. Ngo、Minghua Cui、Nguyen Van Manh、Phuong-Thao Tran、Jihyae Ann、Hee-Jin Ha、Hee Kim、Kwanghyun Choi、Young-Ho Kim、Hyerim Chang、Stephani Joy Y. Macalino、Jiyoun Lee、Sun Choi、Jeewoo Lee
DOI:10.1021/acs.jmedchem.9b00751
日期:2019.9.12
analyses indicated that conformationally restrained inhibitors demonstrated much improved QC inhibition in vitro compared to nonrestricted analogues, and several selected compounds demonstrated desirable therapeutic activity in an AD mouse model. The conformational analysis of a representative inhibitor indicated that the inhibitor appeared to maintain the Z-E conformation at the active site, as it
Pd-Catalyzed Homologation of Arylboronic Acids as a Platform for the Diversity-Oriented Synthesis of Benzylic C–X Bonds
作者:Allan J. B. Watson、Kane A. C. Bastick
DOI:10.1055/a-2117-9878
日期:2023.11
platform for the formation of benzylic C–X bonds. Benzylboronic acid pinacol (Bpin) esters are useful synthetic intermediates but are commercially uncommon, leading to preparations that typically rely upon stoichiometric metalation. Pd-catalyzed formal homologation of arylboronic acids provides access to these compounds that, in turn, allow the formation of C–C, C–O, and C–N bonds from Pd- and Cu-mediated