Trifluoroacetic acid → 2-(7-(3-Cyano-5-(trifluoromethoxy)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic Acid

HRID 515660Notes

Reaction equation

[C:1]([C:3]1[CH:4]=[C:5]([CH:28]=[C:29]([O:31][C:32]([F:35])([F:34])[F:33])[CH:30]=1)[CH2:6][O:7][C:8]1[CH:16]=[CH:15][C:14]2[N:13]3[CH2:17][CH2:18][CH:19]([CH2:20][C:21]([O:23]C(C)(C)C)=[O:22])[C:12]3=[CH:11][C:10]=2[CH:9]=1)#[N:2].C1(SC)C=CC=CC=1.FC(F)(F)C(O)=O>ClCCl>[C:1]([C:3]1[CH:4]=[C:5]([CH:28]=[C:29]([O:31][C:32]([F:35])([F:33])[F:34])[CH:30]=1)[CH2:6][O:7][C:8]1[CH:16]=[CH:15][C:14]2[N:13]3[CH2:17][CH2:18][CH:19]([CH2:20][C:21]([OH:23])=[O:22])[C:12]3=[CH:11][C:10]=2[CH:9]=1)#[N:2]

Participants

Conditions

Temperature: 23 °C

Procedure

To a solution of tert-butyl 2-(7-(3-cyano-5-(trifluoromethoxy)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate (50 mg, 0.103 mmol) and thioanisole (0.121 mL, 1.028 mmol) in dichloromethane (1 mL) was added trifluoroacetic acid (0.305 mL, 4.11 mmol). The solution was stirred at 23° C. for 3 h. The reaction mixture was concentrated. The residue was triturated with hexanes and purified by HPLC to provide the title compound as a white solid (19 mg). LCMS m/z=431.2 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 2.27-2.36 (m, 1H), 2.68 (dd, J=16.6, 8.2 Hz, 1H), 2.87-2.96 (m, 2H), 3.76 (quintet, J=7.5 Hz, 1H), 3.99-4.05 (m, 1H), 4.11-4.17 (m, 1H), 5.11 (s, 2H), 6.13 (s, 1H), 6.86 (dd, J=8.7, 2.4 Hz, 1H), 7.05 (d, J=2.4 Hz, 1H), 7.16 (d, J=8.7 Hz, 1H), 7.43 (s, 1H), 7.57 (s, 1H), 7.68 (s, 1H).

Workup

concentrationThe reaction mixture was concentrated
customThe residue was triturated with hexanes
custompurified by HPLC

Sources & evidence

ORD record: ord-8fa62c9f5e1644beadb3951487398cc6
Source dataset: uspto-grants-2015_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09108969B2

Reaction notes

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