Succinic anhydride → n-(6-Oxo-2-phenyl-5,6-dihydro-1h-[1,2]diazepino[4,5,6-cd]indol-8-yl)-succinamic acid

HRID 720068Notes

Reaction equation

[C:1]1(=[O:7])[O:6][C:4](=[O:5])[CH2:3][CH2:2]1.[NH2:8][C:9]1[CH:10]=[C:11]2[C:27](=[O:28])[NH:26][N:25]=[CH:24][C:13]3=[C:14]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[NH:15][C:16]([CH:17]=1)=[C:12]23>CN(C)C=O.CO>[O:28]=[C:27]1[C:11]2[C:12]3[C:13](=[C:14]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[NH:15][C:16]=3[CH:17]=[C:9]([NH:8][C:4](=[O:5])[CH2:3][CH2:2][C:1]([OH:6])=[O:7])[CH:10]=2)[CH:24]=[N:25][NH:26]1

Participants

Conditions

Temperature: 22 °C

Procedure

Succinic anhydride (3 eq, 0.022 g) was added to a solution of the title compound of Example 7 (0.02 g, 0.072 mmol) in N,N-dimethylformamide (0.7 M, 1 mL) and methanol (2.5 M, 0.3 mL). The reaction mixture was stirred at 22° C. for 24 hours and concentrated under reduced pressure. The yellow solid was triturated with methanol (1.0 mL) and collected by filtration. Following washes with methanol (4 mL) and diethyl ether (5.0 mL), the title compound (21 mg) was obtained in 77% yield.

Workup

concentrationconcentrated under reduced pressure
customThe yellow solid was triturated with methanol (1.0 mL)
filtrationcollected by filtration

Sources & evidence

ORD record: ord-4ec25b396cbd4f3ab52eee13d5ec7e97
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07132533B2

Reaction notes

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