Assertion: substituted pyridine | /r/CapableOf | start material
Facets:
Source sentences:
text: This invention involves the preparation of the 2-carbamoylethyl pyridinium salt (optionally N-substituted by alkyl in the carbamoylethyl group) of a suitable starting pyridine base, followed by reaction of the latter with a nucleophilic reagent to produce the corresponding 2-carbamoylethyl quaternary salt of the nucleophilic substituted pyridine starting material.
text: This invention involves the preparation of the 2-carbamoylethyl pyridinium salt (optionally N-substituted by alkyl in the carbamoylethyl group) of a suitable starting pyridine base, followed by reaction of the latter with a nucleophilic reagent to produce the corresponding 2-carbamoylethyl quanternary salt of the nucleophilic substituted pyridine starting material.
text: This invention involves the preparation of the 2-carbamoylethyl pyridinium salt (optionally N-substituted by alkyl in the carbamoylethyl group) of a suitable starting pyridine base, followed by reaction of the latter with a nucleophilic reagent to produce the corresponding 2-carbamoylethyl quaternary salt of the nucleophilic substituted pyridine starting material.