Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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213/00
Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
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C07D213/02
having three double bonds between ring members or between ring members and non-ring members
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C07D213/04
having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
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C07D213/24
with substituted hydrocarbon radicals attached to ring carbon atoms
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C07D213/44
Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom
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C07D213/48

METHODS OF PREPARATION OF HETEROCYCLIC COMPOUNDS
20250145623 · 2025-05-08 ·

Provided herein are methods of preparation of compound 101.

##STR00001##

Also provided are intermediate compounds useful in the preparation of compound 101, and methods of preparation of those intermediate compounds.

Process for the preparation of substituted pyridine compounds and intermediates thereof
12421194 · 2025-09-23 · ·

The present invention discloses a process for the preparation of substituted pyridine compounds of formula (I), comprises a step in which vinylogous nitriles of formula (II), are obtained from substituted ,-unsaturated nitrile compounds of formula (III), and a further step of converting the vinylogous nitrile compounds of formula (II) into substituted pyridines of formula (I); wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and LG are as defined in the description. ##STR00001##

Process for the preparation of substituted pyridine compounds and intermediates thereof
12421194 · 2025-09-23 · ·

The present invention discloses a process for the preparation of substituted pyridine compounds of formula (I), comprises a step in which vinylogous nitriles of formula (II), are obtained from substituted ,-unsaturated nitrile compounds of formula (III), and a further step of converting the vinylogous nitrile compounds of formula (II) into substituted pyridines of formula (I); wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and LG are as defined in the description. ##STR00001##