Diisopropylethylamine → HCID 67041938, compound

HRID 1405469Notes

Reaction equation

Br[C:2]1[C:3]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[N:4][C:5]2[C:10]([N:11]=1)=[CH:9][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:7][CH:6]=2.[CH3:22][N:23]1[CH2:29][CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1.CCN(C(C)C)C(C)C>CN(C)C=O>[CH3:22][N:23]1[CH2:29][CH2:28][CH2:27][N:26]([C:2]2[C:3]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:4][C:5]3[C:10]([N:11]=2)=[CH:9][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:7][CH:6]=3)[CH2:25][CH2:24]1

Participants

Conditions

Temperature: 100 °C

Procedure

Into a 8-mL sealed tube, was placed a solution of methyl 3-bromo-2-phenylquinoxaline-6-carboxylate (150 mg, 0.44 mmol, 1.00 equiv) in N,N-dimethylformamide (4 mL), 1-methyl-1,4-diazepane (100.3 mg, 0.88 mmol, 2.00 equiv), DIEA (170.3 mg, 1.32 mmol, 3.00 equiv). The resulting solution was stirred overnight at 100° C. in an oil bath. The resulting solution was concentrated under vacuum. The residue was applied onto a silica gel column with dichloromethane/methanol (20:1). This resulted in 126.6 mg (77%) of methyl 3-(4-methyl-1,4-diazepan-1-yl)-2-phenylquinoxaline-6-carboxylate as yellow oil.

Workup

customInto a 8-mL sealed tube
concentrationThe resulting solution was concentrated under vacuum
customThis resulted in 126.6 mg (77%) of methyl 3-(4-methyl-1,4-diazepan-1-yl)-2-phenylquinoxaline-6-carboxylate as yellow oil

Sources & evidence

ORD record: ord-01ed8b701ae745bab605e8d8cc717bd0
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08916560B2

Reaction notes

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