Potassium Carbonate → Ethyl 2-(7-(2,4-Bis(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate

HRID 2274047Notes

Reaction equation

[OH:1][C:2]1[CH:10]=[CH:9][C:8]2[NH:7][C:6]3[CH:11]([CH2:14][C:15]([O:17][CH2:18][CH3:19])=[O:16])[CH2:12][CH2:13][C:5]=3[C:4]=2[CH:3]=1.C([O-])([O-])=O.[K+].[K+].Br[CH2:27][C:28]1[CH:33]=[CH:32][C:31]([C:34]([F:37])([F:36])[F:35])=[CH:30][C:29]=1[C:38]([F:41])([F:40])[F:39]>CN(C=O)C.CCOC(C)=O>[F:39][C:38]([F:40])([F:41])[C:29]1[CH:30]=[C:31]([C:34]([F:37])([F:35])[F:36])[CH:32]=[CH:33][C:28]=1[CH2:27][O:1][C:2]1[CH:10]=[CH:9][C:8]2[NH:7][C:6]3[CH:11]([CH2:14][C:15]([O:17][CH2:18][CH3:19])=[O:16])[CH2:12][CH2:13][C:5]=3[C:4]=2[CH:3]=1

Participants

Conditions

Temperature: 70 °C

Procedure

To a mixture of ethyl 2-(7-hydroxy-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate (0.130 g, 0.5 mmol) and K2CO3 (0.069 g, 0.500 mmol) in DMF (1 mL) was added 1-(bromomethyl)-2,4-bis(trifluoromethyl)benzene (0.154 g, 0.500 mmol). The mixture was heated at 70° C. overnight, taken up in EtOAc, washed with water (thrice) and brine. The organics were dried over MgSO4 and concentrated. The residue was purified by silica gel column chromatography to give the title compound an orange solid (0.195 g). LCMS m/z 486.3 [M+H]+.

Workup

washwashed with water (thrice) and brine
dry with materialThe organics were dried over MgSO4
concentrationconcentrated
customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record: ord-c968d229a9f84c37b7fa458aaee3a2ff
Source dataset: uspto-grants-2015_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09126932B2

Reaction notes

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