Hydrogen Bromide → HCID 57756184, compound

HRID 227506Notes

Reaction equation

N[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:10]=1[NH:9][C:8]([C:11]([NH2:13])=[O:12])=[C:7]2[S:14]([N:17]1[CH2:22][CH2:21][O:20][CH2:19][CH2:18]1)(=[O:16])=[O:15].O.[BrH:24].N([O-])=O.[Na+]>O1CCCC1>[Br:24][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:10]=1[NH:9][C:8]([C:11]([NH2:13])=[O:12])=[C:7]2[S:14]([N:17]1[CH2:22][CH2:21][O:20][CH2:19][CH2:18]1)(=[O:16])=[O:15]

Participants

Conditions

Temperature: 0 °C

Procedure

7-Amino-3-(morpholin-4-ylsulfonyl)-1H-indole-2-carboxamide (26 mg, 0.080 mmol, 1.0 equiv) was dissolved in 2 mL of a 1:1 solution of tetrahydrofuran:water to which 0.2 mL of concentrated aqueous HBr was added and the mixture was cooled to 0° C. NaNO2 (28 mg, 0.40 mmol, 5.0 equiv) was added in one portion, followed by CuBr (57 mg, 0.40 mmol, 5.0 equiv) 25 minutes later. The reaction was warmed to ambient temperature and stirred for 72 hours. The reaction mixture was partitioned between dichloromethane and water and extracted three times with dichloromethane. The combined organic layers were dried (Na2SO4), filtered, and concentrated in vacuo. Purification by preparative reversed phase HPLC provided the titled compound. Proton NMR for the product was consistent with the titled compound. ESI+MS: 388.1 [M+H]+.

Workup

temperatureThe reaction was warmed to ambient temperature
customThe reaction mixture was partitioned between dichloromethane and water
extractionextracted three times with dichloromethane
dry with materialThe combined organic layers were dried (Na2SO4)
filtrationfiltered
concentrationconcentrated in vacuo
customPurification by preparative reversed phase HPLC

Sources & evidence

ORD record: ord-92cb1946241d4ebd83a5ba81c5daa55a
Source dataset: uspto-grants-2009_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07560546B2

Reaction notes

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