US PATENT SUBCLASS 546 / 317
.~.~.~.~.~.~ Processes of obtaining nicotinamide per se

Current as of: June, 1999
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546 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
314  DF  .~.~.~ Carbonyl bonded directly to the six-membered hetero ring {4}
315  DF  .~.~.~.~ At 3-position {2}
316  DF  .~.~.~.~.~ Acyclic nitrogen bonded directly to the carbonyl {1}
317.~.~.~.~.~.~ Processes of obtaining nicotinamide per se

DEFINITION

Classification: 546/317

Processes of obtaining nicotinamide, per se:

(under subclass 316) Processes whereby nicotinamide, i.e., pyridine-3-carboxylic acid amide, is prepared.

(1) Note. Nicotinamide is represented by the structure:

[figure]