123506-66-1Relevant articles and documents
HETEROARYL SUBSTITUTED HETEROCYCLYL SULFONES
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Page/Page column 84; 85, (2015/11/09)
The invention relates to aryl substituted heterocyclyl sulfones as voltage gated calcium channel blockers, to pharmaceutical compositions containing these compounds and also to these compounds for use in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
Convenient Synthesis of 6-Bromo-1,2,3,4-tetrahydroisoquinoline and 3-Methoxy-1,2,3,4-tetrahydro-[2,7]-naphthyridine via Reductive Amination of Schiff's Bases
Zlatoidsky, Pavol,Gabos, Balint
experimental part, p. 3060 - 3068 (2009/11/30)
Synthesis of 7-bromo-1,2,3,4-tetrahydroisoquinoline and 6-methoxy-1,2,3,4-tetrahydro-[2,7]-naphthyridine via lithiation of 2-methylarylidene-tert-butylamines, followed by formylation, reductive amination in one-pot, and removal of the tert-butyl group fro
NOVEL COMPOUNDS
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Page/Page column 19; 35, (2010/11/08)
The invention provides compounds of formula (I): wherein R1, R2, A, A1 and B are as defined in the specification; processes for their preparation; pharmaceutical compositions containing them; a process for preparing the ph
Lithiation of Methoxypyridines Directed by α-Amino Alkoxides
Comins, Daniel L.,Killpack, Michael O.
, p. 69 - 73 (2007/10/02)
The addition of methoxypyridinecarboxaldehydes to certain lithium dialkylamides gave α-amino alkoxides in situ that were ring-lithiated with alkyllithium bases.Alkylation and hydrolysis on workup provided ring-substituted methoxypyridinecarboxaldehydes via a one-pot reaction.The one-pot methylation of isomeric methoxypyridinecarboxaldehydes was examined.The regioselectivity of the lithiation-methylation was dependent on the aldehyde, the amine component of the α-amino alkoxide, and the metalation conditions.When lithiated N,N,N'-trimethylethylenediamine was used as the amine component of the α-amino alkoxide, methylation generally occured ortho to the aldehyde function.The analogous reactions using lithium N-methylpiperazide as the amine component gave substitution next to the methoxy group.Several new methylated methoxypyridinecarboxaldehydes were prepared in a regioselective manner by using this one-pot procedure.