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

HRID 640879Notes

Reaction equation

O[CH:2]=[C:3]1[C:11]2[C:6](=[CH:7][C:8]([C:12]([C:14]3[CH:19]=[CH:18][C:17]([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:16][CH:15]=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]=[CH:16][C:17]([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: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 [4-(3-hydroxymethylene-2-oxo-2,3-dihydro-1H-indole-6-carbonyl)-phenyl]-amide (as prepared in Example 34, 40 mg, 0.093 mmol) and THF (2 mL). To the resulting solution was added 5-amino-2-methoxyphenol (16 mg, 0.115 mmol), and the mixture was stirred for 24 h at 65° C. Subsequently, the reaction mixture was cooled to room temperature and concentrated in vacuo. The solid residue was recrystallized with ˜5 mL of i-prOH affording the title compound in 74% yield (0.038 g, 0.0686 mmol).

Workup

customA small screw cap test tube
temperatureSubsequently, the reaction mixture was cooled to room temperature
concentrationconcentrated in vacuo
customThe solid residue was recrystallized with ˜5 mL

Sources & evidence

ORD record: ord-a22191cc189044c193d23b4f5ab00e09
Source dataset: uspto-grants-2010_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07692005B2

Reaction notes

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