8,9-Difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acid → 10-(4-amino-2-isoindolinyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]-benzoxazine-6-carboxylic acid

HRID 1494730Notes

Reaction equation

HRID 1494730 reaction equation
[F:1][C:2]1[C:3](F)=[C:4]2[O:9][CH2:8][CH:7]([CH3:10])[N:6]3[CH:11]=[C:12]([C:17]([OH:19])=[O:18])[C:13](=[O:16])[C:14]([CH:15]=1)=[C:5]23.[NH2:21][C:22]1[CH:30]=[CH:29][CH:28]=[C:27]2[C:23]=1[CH2:24][NH:25][CH2:26]2>CN(C=O)C>[NH2:21][C:22]1[CH:30]=[CH:29][CH:28]=[C:27]2[C:23]=1[CH2:24][N:25]([C:3]1[C:2]([F:1])=[CH:15][C:14]3[C:13](=[O:16])[C:12]([C:17]([OH:19])=[O:18])=[CH:11][N:6]4[CH:7]([CH3:10])[CH2:8][O:9][C:4]=1[C:5]=34)[CH2:26]2

Participants

4

Reactant 2

HCID 5342788,9-Difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acidHCID 14795861Isoindolin-4-amine

Product 1

HCID 1516791410-(4-amino-2-isoindolinyl)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]-benzoxazine-6-carboxylic acidYield 53.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

157 mg of 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]-benzoxazine-6-carboxylic acid, 242 mg of 4-aminoisoindoline, and 1.5 ml of anhydrous DMF were processed in the same manner as in Example 2 to produce 119 mg of the target compound.

Sources & evidence

ORD record
ord-4741facaf35c44e38e1cfd204e5dac02
Source dataset
uspto-grants-1991_06
Patent number
US05026856

Reaction notes

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