2-Oxindole-5-carboxylic acid → 2-Oxo-3-(4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrol-1-ylmethylene)-2,3-dihydro-1H-indole-5-carboxylic acid

HRID 991809Notes

Reaction equation

HRID 991809 reaction equation
[O:1]=[C:2]1[CH2:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:11]([OH:13])=[O:12])[CH:8]=2)[NH:3]1.[O:14]=[C:15]1[C:20]2=[CH:21][NH:22][C:23]([CH:24]=O)=[C:19]2[CH2:18][CH2:17][O:16]1>>[O:1]=[C:2]1[C:10](=[CH:24][C:23]2[NH:22][CH:21]=[C:20]3[C:15](=[O:14])[O:16][CH2:17][CH2:18][C:19]=23)[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:11]([OH:13])=[O:12])[CH:8]=2)[NH:3]1

Participants

3

Reactant 2

HCID 27733182-Oxindole-5-carboxylic acidHCID 98340494-Oxo-2,4,6,7-tetrahydropyrano[3,4-C]pyrrole-1-carbaldehyde

Product 1

HCID 697071372-Oxo-3-(4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrol-1-ylmethylene)-2,3-dihydro-1H-indole-5-carboxylic acid

Procedure

2-Oxo-2,3-dihydro-1H-indole-5-carboxylic acid was condensed with 4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrole-1-carbaldehyde to give the title compound.

Sources & evidence

ORD record
ord-f7e0ce73781c48b1bce085ee0840e00a
Source dataset
uspto-grants-2002_10
Patent number
US06465507B2

Reaction notes

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