Mallur, Shanta G.; Tiwari; Raju, B. China, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2007, vol. 46, # 10, p. 1686 - 1689
The invention relates to new pharmaceutically active compounds which are are P2-purinoceptor 7-transmembrane (TM) G-protein coupled receptor antagonists, compositions containing them and processes for their preparation.
Hydrazide compounds with GPCR desensitization inhibitory activity are provided that may be used to influence, inhibit or reduce the action of a G-protein receptor kinase. Pharmaceutical compositions including therapeutically effective amounts of the hydrazide compounds and pharmaceutically acceptable carriers are also provided. Various methods using the compounds and/or compositions to affect disease states or conditions controlled or influenced by GPCRs are also provided. Various methods using the compounds and/or compositions to affect disease states or conditions such as cancer, osteoporosis and glaucoma are also provided.
Exploiting Synergistic Catalysis for an Ambient Temperature Photocycloaddition to Pyrazoles
作者:Christopher P. Lakeland、David W. Watson、Joseph P. A. Harrity
DOI:10.1002/chem.201904210
日期:2020.1.2
Sydnone-based cycloaddition reactions are a versatile platform for pyrazole synthesis, however they operate under harsh conditions (high temperature and long reaction times). Herein we report a strategy that addresses this limitation utilizing the synergistic combination of organocatalysis and visible-light photocatalysis. This new approach proceeds under ambient conditions and with excellent levels
Conjugate Addition–Enantioselective Protonation of <i>N</i>-Aryl Glycines to α-Branched 2-Vinylazaarenes via Cooperative Photoredox and Asymmetric Catalysis
and a dicyanopyrazine-derived chromophore (DPZ) photosensitizer that is mediated by visible light, a variety of α-branched 2-vinylpyridines and 2-vinylquinolines with N-aryl glycines underwent a redox-neutral, radical conjugate addition-protonation process and provided valuable chiral 3-(2-pyridine/quinoline)-3-substituted amines in high yields with good to excellent enantioselectivities (up to >99%