Hydrochloric Acid → 8-Ethyl-5,8-dihydro-5-oxo-2-(piperazinyl)pyrido(2,3-d)pyrimidine-6-carboxylic acid hydrochloride

HRID 1658116Notes

Reaction equation

[CH2:1]([N:3]1[C:8]2[N:9]=[C:10]([N:13]3[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]3)[N:11]=[CH:12][C:7]=2[C:6](=[O:19])[C:5]([C:20]([OH:22])=[O:21])=[CH:4]1)[CH3:2].[ClH:23]>>[ClH:23].[CH2:1]([N:3]1[C:8]2[N:9]=[C:10]([N:13]3[CH2:14][CH2:15][NH:16][CH2:17][CH2:18]3)[N:11]=[CH:12][C:7]=2[C:6](=[O:19])[C:5]([C:20]([OH:22])=[O:21])=[CH:4]1)[CH3:2]

Participants

Reactant 2

HCID 313Hydrochloric Acid

HCID 4831Pipemidic Acid

Product 1

HCID 64525688-Ethyl-5,8-dihydro-5-oxo-2-(piperazinyl)pyrido(2,3-d)pyrimidine-6-carboxylic acid hydrochloride

Procedure

To a stirred solution of saturated alcoholic hydrochloric acid (20 ml) was added, under ice-cooling, in portions of 1.28 g of 5,8-dihydro-8-ethyl-2-(1-piperazinyl)-5-oxopyrido[2,3-d]pyrimidine-6-carboxylic acid.

Sources & evidence

ORD record: ord-72da9ff5680d44628f1f1b8b4cb1a790
Source dataset: uspto-grants-1976_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US03962443

Reaction notes

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