Triethylamine → 8-amino-9-fluoro-3-methyl-10-[(3-cyclopropylaminomethyl)-1-pyrrolidinyl]-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid

HRID 2372090Notes

Reaction equation

[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]([C:17]([OH:19])=[O:18])=[CH:12][N:7]3[CH:8]([CH3:11])[CH2:9][O:10][C:5]([C:6]=23)=[C:4](F)[C:3]=1[F:21].[CH:22]1([NH:25][CH2:26][CH:27]2[CH2:31][CH2:30]NC2)[CH2:24][CH2:23]1.[CH2:32]([N:34](CC)CC)C>CN(C)C=O>[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]([C:17]([OH:19])=[O:18])=[CH:12][N:7]3[CH:8]([CH3:11])[CH2:9][O:10][C:5]([C:6]=23)=[C:4]([N:34]2[CH2:32][CH2:30][CH2:31][CH:27]2[CH2:26][NH:25][CH:22]2[CH2:23][CH2:24]2)[C:3]=1[F:21]

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 2.96 g (10 mmole) of 8-amino-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido [1,2,3-de][1,4]benzoxazine-6-carboxylic acid, 2.1 g (15 mmole) of N-cyclopropyl-3-pyrrolidinemethanamine, 3.03 g (30 mmole) of triethylamine and 100 ml of N,N-dimethylformamide is heated at 100° C. for four hours. The solvent is removed in vacuo and the residue triturated with water. The aqueous suspension is adjusted to pH 7.2 with 1.0M hydrochloric acid. The solid is removed by filtration, washed with water, and dried in vacuo to give 8-amino-9-fluoro-3-methyl-10-[(3-cyclopropylaminomethyl)-1-pyrrolidinyl]-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid.

Workup

customThe solvent is removed in vacuo
customthe residue triturated with water
customThe solid is removed by filtration
washwashed with water
customdried in vacuo

Sources & evidence

ORD record: ord-4880d2e8243b403fb57d6c592c02a6f9
Source dataset: uspto-grants-1992_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05097032

Reaction notes

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