Synthesis of Substituted Isoquinolines by Electrophilic Cyclization of Iminoalkynes
作者:Qinhua Huang、Jack A. Hunter、Richard C. Larock
DOI:10.1021/jo020020e
日期:2002.5.1
pyridinecarbaldehydes have been cyclized under very mild reaction conditions in the presence of I(2), ICl, PhSeCl, PhSCl, and p-O(2)NC(6)H(4)SCl to give the corresponding halogen-, selenium-, and sulfur-containing disubstituted isoquinolines and naphthyridines, respectively. This methodology accommodates a variety of iminoalkynes and affords the anticipated heterocycles in moderate to excellent yields. Monosubstituted
Synthesis of Isoquinolines and Pyridines by the Palladium/Copper-Catalyzed Coupling and Cyclization of Terminal Acetylenes and Unsaturated Imines: The Total Synthesis of Decumbenine B
作者:Kevin R. Roesch、Richard C. Larock
DOI:10.1021/jo010579z
日期:2002.1.1
have been developed. However, aryl-, vinylic-, and alkyl-substituted acetylenes undergo palladium-catalyzed coupling and subsequent copper-catalyzed cyclization in excellent yields. The totalsynthesis of the isoquinoline natural product decumbenine B has been accomplished in seven steps and 20% overall yield by employing this palladium-catalyzed coupling and cyclization methodology.
An Efficient Synthesis of 3-Substituted Isoquinoline and Pyridine Derivatives by Gold Catalyzed Intramolecular Cyclization from<i>o</i>-Alkynyloximes
作者:K. P. V. Subbarao、G. Raveendra Reddy、A. Muralikrishna、K. V. Reddy
DOI:10.1002/jhet.2109
日期:2014.7
A one‐pot reaction was developed efficiently by AuCl3 catalyzed intramolecularcyclization of aromatic o‐alkynyloximes and 2‐alkynylcycloalkene‐1‐carbaldoximes leading to the formation of isoquinoline and pyridine derivatives with high yields. This methodology has been applied for aromatic as well as aliphatic systems. Aromatic o‐alkynyloximes are benzene and naphthalene, whereas electron‐donating
CYCLIC SULFONAMIDE CONTAINING DERIVATIVES AS INHIBITORS OF HEDGEHOG SIGNALING PATHWAY
申请人:NANT HOLDINGS IP, LLC
公开号:US20150299190A1
公开(公告)日:2015-10-22
The invention relates generally to the creation and use of cyclic sulfonamide containing derivatives to inhibit the hedgehog signaling pathway and to the use of those compounds for the treatment of hyperproliferative diseases and angiogenesis mediated diseases.
Cyclic sulfonamide containing derivatives as inhibitors of hedgehog signaling pathway
申请人:NantBioScience, Inc.
公开号:US10183013B2
公开(公告)日:2019-01-22
The invention relates generally to the creation and use of cyclic sulfonamide containing derivatives to inhibit the hedgehog signaling pathway and to the use of those compounds for the treatment of hyperproliferative diseases and angiogenesis mediated diseases.