Low Molecular Weight Activated Protein C Inhibitors as a Potential Treatment for Hemophilic Disorders
摘要:
The synthesis and evaluation of inhibitors of activated protein C (aPC) are reported. This serine protease is partly responsible for the degradation of factor VIIIa, involved in the regulation of bleeding in hemophilia A. Benzamidine-containing derivatives were found to be potent aPC inhibitors, some of them showing selectivity against the procoagulant protease thrombin. Moreover, compound 1 significantly restored the generation of thrombin in hemophiliac plasma.
4-Aminobenzotriazole (ABTA) as a Removable Directing Group for Palladium-Catalyzed Aerobic Oxidative C–H Olefination
作者:Zhuo Wang、Xiaohan Ye、Meina Jin、Qi Tang、Shengyu Fan、Zhiguang Song、Xiaodong Shi
DOI:10.1021/acs.orglett.2c00285
日期:2022.5.6
4-Aminobenzotriazole (ABTA) was applied as an effective removabledirectinggroup (DG) in Pd-catalyzed C–H activation for the first time. Compared with the widely applied pyridine and quinoline analogs, ABTA showed significantly improved reactivity, achieving aerobic oxidative C–H olefination in excellent yields (up to 95% vs <50% with other reported DGs under identical conditions). Using this new
Conventional peptide synthesis requires a deprotection step after each amidation step, which decreases synthetic efficiency. Therefore, peptide synthesis using unprotected amino acids is considered an ideal approach. Here, we report peptide chain elongation using unprotected amino acids via a mixed carbonic anhydride. Micro-flow technology enabled rapid mixing of an organic layer containing a protected
Low Molecular Weight Activated Protein C Inhibitors as a Potential Treatment for Hemophilic Disorders
作者:Guillaume De Nanteuil、Philippe Gloanec、Suzette Béguin、Peter L. A. Giesen、H. Coenraad Hemker、Philippe Mennecier、Alain Rupin、Tony J. Verbeuren
DOI:10.1021/jm0606950
日期:2006.8.1
The synthesis and evaluation of inhibitors of activated protein C (aPC) are reported. This serine protease is partly responsible for the degradation of factor VIIIa, involved in the regulation of bleeding in hemophilia A. Benzamidine-containing derivatives were found to be potent aPC inhibitors, some of them showing selectivity against the procoagulant protease thrombin. Moreover, compound 1 significantly restored the generation of thrombin in hemophiliac plasma.