The present invention features compounds useful in the treatment of neurological disorders. The compounds of the invention, alone or in combination with other pharmaceutically active agents, can be used for treating or preventing neurological disorders.
[EN] SUBSTITUTED HETEROCYCLICS WITH THERAPEUTIC ACTIVITY IN HIV<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES SUBSTITUÉS PRÉSENTANT UNE ACTIVITÉ THÉRAPEUTIQUE CONTRE LE VIH
申请人:NEW YORK BLOOD CENTER INC
公开号:WO2021102114A1
公开(公告)日:2021-05-27
Substituted heterocyclic substituted pyrrole carboxamide compounds such as those represented by Formula I or Formula II are provided herein. Such compounds, or pharmaceutically acceptable salts thereof, can be used in the treatment of HIV infection and related conditions.
It has been found that pyridine-2-carboxamides of the formula ##STR1## wherein R is amino or a residue convertible into amino, and pharmaceutically usable acid addition salts of that carboxamide in which R is amino can be prepared in a simple manner and in good yield by reacting 2,5-dichloropyridine in the presence of a palladium-phosphine catalyst with an alkyne of the formula R.sup.1 -C.tbd.CH III wherein R.sup.1 is hydrogen, lower-alkyl, trimethylsilyl or the group --(R.sup.2)(R.sup.3)--COH and R.sup.2 and R.sup.3 each independently are hydrogen or lower-alkyl or together are cyclopentyl or cyclohexyl, oxidizing the resulting alkyne to give 5-chloropyridine-2-carboxylic acid and reacting this acid or a reactive functional derivative thereof with an amino compound of the formula VI. The compound of formula I in which R is amino is a known compound which is a reversible and highly active MAO-B inhibitor.
It has been found that pyridine-2-carboxamides of the formula ##STR1## wherein R is amino or a residue convertible into amino, and pharmaceutically usable acid addition salts of that carboxamide in which R is amino can be prepared in a simple manner and in good yield by reacting 2,5-dichloropyridine in the presence of a palladium-phosphine catalyst with an alkyne of the formula R.sup.1 --C.tbd.CH III wherein R.sup.1 is hydrogen, lower-alkyl, trimethylsilyl or the group --(R.sup.2)(R.sup.3)--COH and R.sup.2 and R.sup.3 each independently are hydrogen or lower-alkyl or together are cyclopentyl or cyclohexyl, oxidizing the resulting alkyne to give 5-chloropyridine-2-carboxylic acid and reacting this acid or a reactive functional derivative thereof with an amino compound of the formula or with carbon monoxide and an amino compound of formula VI or with carbon monoxide and a lower alkanol which is optionally mixed with water and reacting the resulting acid or the resulting ester with an amino compound of formula VI. The compound of formula I in which R is amino is a known compound which is a reversible and highly active MAO-B inhibitor.
The present invention provides 1,4 Oxazines of formula I
having BACE1 and/or BACE2 inhibitory activity, their manufacture, pharmaceutical compositions containing them and their use as therapeutically active substances. The active compounds of the present invention are useful in the therapeutic and/or prophylactic treatment of e.g. Alzheimer's disease and type 2 diabetes.