A Closer Look at the Bromine–Lithium Exchange with tert-Butyllithium in an Aryl Sulfonamide Synthesis
摘要:
A practical protocol for the one-pot synthesis of various aryl sulfonamides, notably of pyridine-core-substituted 7-azaindolyl sulfonamides, Is described. A key step is the well-known bromine-lithium exchange reaction of an aryl bromide with tert-butyllithium (t-BuLi). Differing from the common practice to use 2 or more equiv of organolithium, the exact amount of t-BuLi needed for a sufficient exchange reaction Is determined for each aryl bromide in a GC-MS-assisted experiment.
A Closer Look at the Bromine–Lithium Exchange with tert-Butyllithium in an Aryl Sulfonamide Synthesis
摘要:
A practical protocol for the one-pot synthesis of various aryl sulfonamides, notably of pyridine-core-substituted 7-azaindolyl sulfonamides, Is described. A key step is the well-known bromine-lithium exchange reaction of an aryl bromide with tert-butyllithium (t-BuLi). Differing from the common practice to use 2 or more equiv of organolithium, the exact amount of t-BuLi needed for a sufficient exchange reaction Is determined for each aryl bromide in a GC-MS-assisted experiment.
COMPOUNDS AND METHODS FOR KINASE MODULATION, AND INDICATIONS THEREFOR
申请人:Ibrahim Prabha N.
公开号:US20110059963A1
公开(公告)日:2011-03-10
Compounds active on protein kinases are described, as well as methods of using such compounds to treat diseases and conditions associated with aberrant activity of protein kinases.
Compounds and methods for kinase modulation, and indications therefor
申请人:Plexxikon, Inc.
公开号:US07863288B2
公开(公告)日:2011-01-04
Compounds active on protein kinases are described, as well as methods of using such compounds to treat diseases and conditions associated with aberrant activity of protein kinases.