Isoxazole group directed Rh(iii)-catalyzed alkynylation using TIPS-EBX
作者:Sukanya Das、Tanmoy Datta、Md. Abbasuddin Sk、Brindaban Roy、Raj K. Nandi
DOI:10.1039/d4ob00797b
日期:——
A highly effective isoxazole directed ortho C–H alkynylation has been developed. Rhodium(III) catalyzed direct di-(and/or mono) alkynylation using a hypervalent iodine reagent (TIPS-EBX) is reported. The reaction proceeds with a wide substrate scope under benign conditions. Preliminary mechanistic studies support this chelation assisted C–H alkynylation.
一种高效的异恶唑定向邻位C-H 炔基化反应已被开发出来。据报道,使用高价碘试剂 (TIPS-EBX) 进行铑 ( III ) 催化的直接二(和/或单)炔基化。该反应在良好的条件下以广泛的底物范围进行。初步机制研究支持这种螯合辅助的 C-H 炔基化。
Discovery of 3-hydroxy-4-cyano-isoquinolines as novel, potent, and selective inhibitors of human 11β-hydroxydehydrogenase 1 (11β-HSD1)
作者:Shung C. Wu、David Yoon、Janice Chin、Katy van Kirk、Ramakrishna Seethala、Rajasree Golla、Bin He、Thomas Harrity、Lori K. Kunselman、Nathan N. Morgan、Randolph P. Ponticiello、Joseph R. Taylor、Rachel Zebo、Timothy W. Harper、Wenying Li、Mengmeng Wang、Lisa Zhang、Bogdan G. Sleczka、Akbar Nayeem、Steven Sheriff、Daniel M. Camac、Paul E. Morin、John G. Everlof、Yi-Xin Li、Cheryl A. Ferraro、Kasia Kieltyka、Wilson Shou、Marianne B. Vath、Tatyana A. Zvyaga、David A. Gordon、Jeffrey A. Robl
DOI:10.1016/j.bmcl.2011.09.058
日期:2011.11
Derived from the HTS hit 1, a series of hydroxyisoquinolines was discovered as potent and selective 11 beta-HSD1 inhibitors with good cross species activity. Optimization of substituents at the 1 and 4 positions of the isoquinoline group in addition to the core modifications, with a special focus on enhancing metabolic stability and aqueous solubility, resulted in the identification of several compounds as potent advanced leads. (C) 2011 Elsevier Ltd. All rights reserved.