Sodium 3-(difluoromethoxy)benzenesulfinate → Tert-butyl 2-(3-difluoromethoxyphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylate

HRID 2036701Notes

Reaction equation

HRID 2036701 reaction equation
[F:1][CH:2]([F:13])[O:3][C:4]1[CH:5]=[C:6]([S:10]([O-:12])=[O:11])[CH:7]=[CH:8][CH:9]=1.[Na+].Br[C:16]1[CH:24]=[CH:23][C:22]2[N:21]([CH3:25])[C:20]3[CH2:26][CH:27]4[NH:31][CH:30]([C:19]=3[C:18]=2[C:17]=1[C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:29][CH2:28]4>>[F:13][CH:2]([F:1])[O:3][C:4]1[CH:5]=[C:6]([S:10]([C:16]2[CH:24]=[CH:23][C:22]3[N:21]([CH3:25])[C:20]4[CH2:26][CH:27]5[NH:31][CH:30]([C:19]=4[C:18]=3[C:17]=2[C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:29][CH2:28]5)(=[O:12])=[O:11])[CH:7]=[CH:8][CH:9]=1

Participants

3

Reactant 2

HCID 58258782Sodium 3-(difluoromethoxy)benzenesulfinateHCID 67085938Tert-butyl 2-bromo-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylate

Product 1

HCID 67085524Tert-butyl 2-(3-difluoromethoxyphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylateYield 43%

Procedure

Intermediate 6 was coupled with the product of Example 27, step B following the procedure of Example 27, step C. The crude material was purified by flash column chromatography (SiO2, 7:3 hexane/ethyl acetate) to give tert-butyl 2-(3-difluoromethoxyphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylate (155 mg, 43%) as an off-white solid: 1H NMR (CDCl3, 300 MHz) δ 8.12-8.22 (m, 1H), 7.76-7.82 (m, 1H), 7.62-7.72 (m, 2H), 7.46 (t, J=8.1 Hz, 1H), 7.32 (d, J=8.7 Hz, 1H), 7.21-7.26 (m, 1H), 6.52 (t, J=72.9 Hz, 1H), 5.19-5.38 (m, 1H), 4.55-4.80 (m, 1H), 3.61 (s, 3H), 3.20-3.51 (m, 1H), 2.50 (d, J=8.1 Hz, 1H), 2.12-2.40 (m, 2H), 1.89-1.99 (m, 1H), 1.55-1.67 (m, 1H), 1.37 (s, 9H).

Workup

  1. customThe crude material was purified by flash column chromatography (SiO2, 7:3 hexane/ethyl acetate)

Sources & evidence

ORD record
ord-12a3c22fd3b747f68ecb23efbdb38a97
Source dataset
uspto-grants-2013_11
Patent number
US08575186B2

Reaction notes

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