5-Amino-2-methoxyphenol → 5-Acetyl-thiophene-2-carboxylic acid (3-{3-[(3-hydroxy-4-methoxy-phenylamino)-methylene]-2-oxo-2,3-dihydro-1H-indole-6-carbonyl}-phenyl)-amide

HRID 640901Notes

Reaction equation

O[CH:2]=[C:3]1[C:11]2[C:6](=[CH:7][C:8]([C:12]([C:14]3[CH:15]=[C:16]([NH:20][C:21]([C:23]4[S:24][C:25]([C:28](=[O:30])[CH3:29])=[CH:26][CH:27]=4)=[O:22])[CH:17]=[CH:18][CH:19]=3)=[O:13])=[CH:9][CH:10]=2)[NH:5][C:4]1=[O:31].[NH2:32][C:33]1[CH:34]=[CH:35][C:36]([O:40][CH3:41])=[C:37]([OH:39])[CH:38]=1>C1COCC1>[OH:39][C:37]1[CH:38]=[C:33]([NH:32][CH:2]=[C:3]2[C:11]3[C:6](=[CH:7][C:8]([C:12]([C:14]4[CH:15]=[C:16]([NH:20][C:21]([C:23]5[S:24][C:25]([C:28](=[O:30])[CH3:29])=[CH:26][CH:27]=5)=[O:22])[CH:17]=[CH:18][CH:19]=4)=[O:13])=[CH:9][CH:10]=3)[NH:5][C:4]2=[O:31])[CH:34]=[CH:35][C:36]=1[O:40][CH3:41]

Participants

Conditions

Temperature: 65 °C

Procedure

A small screw cap test tube was charged with 5-Acetyl-thiophene-2-carboxylic acid [3-(3-hydroxymethylene-2-oxo-2,3-dihydro-1H-indole-6-carbonyl)-phenyl]-amide (prepared below, 100 mg, 0.231 mmol) and THF (2 mL). To the resulting solution was added 5-amino-2-methoxyphenol (35.39 mg, 0.254 mmol), and the mixture was stirred for 24 h at 65° C. Subsequently, the reaction mixture was cooled to room temperature. Hexanes were added to the reaction mixture. The solid precipitate that formed was washed with ˜1 mL of i-prOH yielding 59% (75 mg, 0.136 mmol) of the title compound.

Workup

customA small screw cap test tube
temperatureSubsequently, the reaction mixture was cooled to room temperature
customThe solid precipitate that formed

Sources & evidence

ORD record: ord-d9276e9424494da49949b0e32278b534
Source dataset: uspto-grants-2010_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07692005B2

Reaction notes

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