C(sp
<sup>3</sup>
)–H methylation enabled by peroxide photosensitization and Ni-mediated radical coupling
作者:Aristidis Vasilopoulos、Shane W. Krska、Shannon S. Stahl
DOI:10.1126/science.abh2623
日期:2021.4.23
candidate associated with addition of a single methyl group. We report a synthetic method that enables direct methylation of C(sp3)–H bonds in diverse drug-like molecules and pharmaceutical building blocks. Visible light–initiated triplet energy transfer promotes homolysis of the O–O bond in di-tert-butyl or dicumyl peroxide undermildconditions. The resulting alkoxyl radicals undergo divergent reactivity
Sulfone derivatives, process for their production and use thereof
申请人:——
公开号:US20030187023A1
公开(公告)日:2003-10-02
A compound represented by the formula:
1
wherein R is a cyclic hydrocarbon group, or the like; W is a bond, or the like; X is a divalent hydrocarbon group, or the like; Y and Z are each independently —N(R
6
)— or the like; ring A is a nitrogen-containing heterocyclic ring, or the like; R5 and R6 are independently hydrogen atom, a hydrocarbon group, or the like; Z′ is imidoyl group, or the like; a is 0, 1 or 2; and b is 0 or 1, or a salt thereof.
SULFONE DERIVATIVES, PROCESS FOR THEIR PRODUCTION AND USE THEREOF
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1302462A1
公开(公告)日:2003-04-16
A compound represented by the formula:
wherein R is a cyclic hydrocarbon group, or the like; W is a bond, or the like; X is a divalent hydrocarbon group, or the like; Y and Z are each independently -N(R6)- or the like; ring A is a nitrogen-containing heterocyclic ring, or the like; R5 and R6 are independently hydrogen atom, a hydrocarbon group, or the like; Z' is imidoyl group, or the like; a is 0, 1 or 2; and b is 0 or 1, or a salt thereof.
一种由式表示的化合物:
其中 R 是环状烃基,或类似物;W 是键,或类似物;X 是二价烃基,或类似物;Y 和 Z 各自独立地是 -N(R6)- 或类似物;环 A 是含氮杂环,或类似物;R5 和 R6 独立地是氢原子、烃基,或类似物;Z'是咪唑酰基,或类似物;a 是 0、1 或 2;b 是 0 或 1,或其盐。