Design, synthesis, and biological evaluation of novel 2-pyridinyl-[1,2,4]triazoles as inhibitors of transforming growth factor β1 type 1 receptor
摘要:
A series of 2-pyridinyl-[1,2,4]triazoles have been synthesized and evaluated for their ALK5 inhibitory activity in the luciferase reporter assays. Compound 12b showed significant ALK5 inhibition (SBE-Luciferase, 73%; p3TP-Luciferase, 85%) at a concentration of 5 muM that is comparable to that of SB-431542 (SBE-Luciferase, 79%; p3TP-Luciferase, 88%), but weak p38alpha MAP kinase inhibition (4%) at a concentration of 10 muM that is much lower than that of SB-431542 (54%). The binding mode of 12b generated by flexible docking studies revealed that the structure of 12b is a good fit into the (NPC-30345)-binding cavity of ALK5. (C) 2004 Elsevier Ltd. All rights reserved.
Pyridyl carboximidamide compounds useful in treating blood pressure
申请人:Kirin Beer Kabushiki Kaisha
公开号:US05223508A1
公开(公告)日:1993-06-29
Novel carboximidamide derivatives represented by the following formula (A) and acid adduct salts thereof are disclosed: ##STR1## wherein all the substituents have the same meanings as defined above. N-cyano-pyridinecarboxyimidate compounds represented by the following formula (II) which are the intermediates for preparing of N-cyano-N'-substituted-pyridinecarboximidamide derivatives wherein the substituent B in the above described formula (A) is pyridine are also disclosed: ##STR2## wherein all the substituents have the same meanings as defined above. The process for preparing the compounds, the pharmaceutical agents comprising the compound having vasodilating effect, and the therapeutic method of dosing the compound on patients for therapy are also disclosed.
C–H Activation Guided by Aromatic N–H Ketimines: Synthesis of Functionalized Isoquinolines Using Benzyl Azides and Alkynes
作者:Sreya Gupta、Junghoon Han、Yongjin Kim、Soon W. Lee、Young Ho Rhee、Jaiwook Park
DOI:10.1021/jo501465q
日期:2014.10.3
Aromatic N-H ketimines were in situ generated from various benzylic azides by ruthenium catalysis for the subsequent Rh-catalyzed annulation reaction with alkynes to give the corresponding isoquinolines. In contrast to conventional synthetic methods for aromatic NH ketimines, our protocol works under mild and neutral conditions, which enabled the synthesis of isoquinolines having various functionalities such as carbonyl, ester, alkenyl, and ether groups. In addition, the imidates generated from alpha-azido ethers were successfully used for the synthesis of 1-alkoxyisoquinolines.