Trifluoroacetic acid → 1-(benzo[d][1,3]dioxol-5-yl)-N-(2-tert-butyl-1-(1,3-dihydroxypropan-2-yl)-1H-indol-5-yl)cyclopropanecarboxamide

HRID 1908550Notes

Reaction equation

[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:17]=[C:18]5[C:22](=[CH:23][CH:24]=4)[N:21]([CH:25]([CH2:28][OH:29])[CH2:26][OH:27])[CH:20]([C:30]([CH3:33])([CH3:32])[CH3:31])[CH2:19]5)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1.FC(F)(F)C(O)=O.ClC1C(=O)C(Cl)=C(Cl)C(=O)C=1Cl>C1(C)C=CC=CC=1>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:17]=[C:18]5[C:22](=[CH:23][CH:24]=4)[N:21]([CH:25]([CH2:26][OH:27])[CH2:28][OH:29])[C:20]([C:30]([CH3:33])([CH3:32])[CH3:31])=[CH:19]5)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1

Participants

Conditions

Temperature: 100 °C

Procedure

1-(Benzo[d][1,3]dioxol-5-yl)-N-(2-tert-butyl-1-(1,3-dihydroxypropan-2-yl)indolin-5-yl)cyclopropanecarboxamide (40.3 mg, 0.0711 mmol as the trifluoracetic acid salt) was dissolved in toluene (1 mL). To the resulting solution was added 2,3,5,6-tetrachlorocyclohexa-2,5-diene-1,4-dione (35 mg, 0.14 mmol). The resulting suspension was heated at 100° C. in an oil bath for 10 minutes. The crude product was then evaporated to dryness, dissolved in a 1 mL of N,N-dimethylformamide and purified by purified by preparative HPLC using a gradient of 0-99% acetonitrile in water containing 0.05% trifluoroacetic acid to yield 1-(benzo[d][1,3]dioxol-5-yl)-N-(2-tert-butyl-1-(1,3-dihydroxypropan-2-yl)-1H-indol-5-yl)cyclopropanecarboxamide. ESI-MS m/z calc. 450.2. found 451.5 (M+1)+. Retention time of 1.59 minutes.

Workup

customThe crude product was then evaporated to dryness
dissolutiondissolved in a 1 mL of N,N-dimethylformamide
custompurified
customby purified by preparative HPLC

Sources & evidence

ORD record: ord-8c82324047f94d62af2cab75d1adf3f2
Source dataset: uspto-grants-2013_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08598181B2

Reaction notes

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