Nitrogen or oxygen as hetero atom and at least one other diverse hetero ring atom in the same ring

Full Title

Preparation of heterocyclic carbon compounds with only O, N, S, Se, or Te as ring hetero atoms > Nitrogen or oxygen as hetero atom and at least one other diverse hetero ring atom in the same ring

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING

Subclass:

FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE