Selective N-Alkylation of Amines with Alcohols by Using Non-Metal-Based Acid-Base Cooperative Catalysis
作者:Ya Du、Shunsuke Oishi、Susumu Saito
DOI:10.1002/chem.201102446
日期:2011.10.24
straightforward method for the selective N‐mono‐ and dialkylation of amines with alcohols by means of non‐metal‐based catalysis promoted by TAPC is reported (see scheme). Selectivity of the N‐mono‐ and dialkylation, substrate scope and functional‐group tolerance are highlighted with respect to each amine (1° and 2°; aromatic and aliphatic) and alcohol (1°, 2° and 3°; benzylic and aliphatic) component.
Tropyliumion mediated α-cyanation of amines is described. Even in the presence of KCN, tropyliumion is capable of oxidizing various amine substrates, and the resulting iminium ions undergo salt metathesis with cyanide ion to produce aminonitriles. The byproducts of this transformation are simply cycloheptatriene, a volatile hydrocarbon, and water-soluble potassium tetrafluoroborate. Thirteen total
BENZOISOTHIAZOLE, ISOTHIAZOLO[3,4-B]PYRIDINE, QUINAZOLINE, PHTHALAZINE, PYRIDO[2,3-D]PYRIDAZINE AND PYRIDO[2,3-D]PYRIMIDINE DERIVATIVES AS KRAS G12C INHIBITORS FOR TREATING LUNG, PANCREATIC OR COLORECTAL CANCER
申请人:Amgen Inc.
公开号:EP4001269A1
公开(公告)日:2022-05-25
Provided herein are compounds of formulae (I), (II), (III), (III´), (IV), (IV´) and (V):
as KRAS G12C inhibitors for use in treating cancer, such as e.g. pancreatic, colorectal and lung cancer.
Preferred compounds are e.g. benzoisothiazole, isothiazolo[3,4-b]pyridine, quinazoline, phthalazine, pyrido[2,3-d]pyridazine and pyrido[2,3-d]pyrimidine derivatives.
An exemplary compound is e.g. 1-(4-(6-(2-bromo-5-hydroxyphenyl)-5-chloro-7-fluorobenzo[c]isothiazol-3-yl)piperazin-1-yl)prop-2-en-1-one (example 1-1):
In Situ Oxidation−Imine Formation−Reduction Routes from Alcohols to Amines
作者:Leonie Blackburn、Richard J. K. Taylor
DOI:10.1021/ol015819b
日期:2001.5.1
[GRAPHICS]Manganese dioxide is employed as an in situ oxidant for the one pot conversion of alcohols into imines, In combination with polymer-supported cyanoborohydride (PSCBH), a one-pot oxidation-imine formation-reduction sequence is reported, This procedure enables alcohols to be converted directly into both secondary and tertiary amines.
Verfahren zur Herstellung von Anthrachinonderivaten