Sodium Hydroxide → 6-chloro-5-{4-[1-(methylsulfonyl)azetidin-2-yl]phenyl}-1H-indole-3-carboxylic acid

HRID 338332Notes

Reaction equation

[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([O:13]C)=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:15]1[CH:20]=[CH:19][C:18]([CH:21]2[CH2:24][CH2:23][N:22]2[S:25]([CH3:28])(=[O:27])=[O:26])=[CH:17][CH:16]=1.[OH-].[Na+]>CO>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([OH:13])=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:15]1[CH:20]=[CH:19][C:18]([CH:21]2[CH2:24][CH2:23][N:22]2[S:25]([CH3:28])(=[O:27])=[O:26])=[CH:17][CH:16]=1

Participants

Conditions

Temperature: 70 °C

Procedure

To a solution of methyl 6-chloro-5-{4-[1-(methylsulfonyl)azetidin-2-yl]phenyl}-1H-indole-3-carboxylate (80 mg, 0.22 mmol) in methanol (8 mL) was added 1.0M aq. NaOH (2.0 mL, 2.0 mmol). The mixture was stirred at 70° C. for 24 hours. The mixture was adjusted to pH 7 and purified by prep-HPLC to give the title compound (20 mg, 13% yield) as a white solid. MS (ES+) 445.0 (M+CH3CN)+. 1H NMR (400 MHz, DMSO-d6): δ 8.05 (s, 1H), 7.95 (s, 1H), 7.65 (s, 1H), 7.50-7.30 (m, 4H), 4.70 (m, 1H), 3.10 (m, 2H), 2.89 (s, 3H), 1.90-1.80 (m, 2H).

Workup

custompurified by prep-HPLC

Sources & evidence

ORD record: ord-002959b7f8004aaeaace4d4ae8de4424
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08889730B2

Reaction notes

Loading…