Sodium Hydroxide → [1-(3,4-dichloro-benzyl)-1H-pyrrolo[2,3-b]pyridine-3-yl]-acetic acid

HRID 1754476Notes

Reaction equation

C[O:2][C:3](=[O:23])[CH2:4][C:5]1[C:13]2[C:8](=[N:9][CH:10]=[CH:11][CH:12]=2)[N:7]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([Cl:22])[CH:16]=2)[CH:6]=1.[OH-].[Na+]>CO>[Cl:22][C:17]1[CH:16]=[C:15]([CH:20]=[CH:19][C:18]=1[Cl:21])[CH2:14][N:7]1[C:8]2=[N:9][CH:10]=[CH:11][CH:12]=[C:13]2[C:5]([CH2:4][C:3]([OH:23])=[O:2])=[CH:6]1

Participants

Conditions

Temperature: 25 °C

Procedure

To a solution of [1-(3,4-dichloro-benzyl)-1H-pyrrolo[2,3-b]pyridine-3-yl]acetic acid methyl ester (23 mg, 0.066 mmol) in MeOH (0.5 mL), is added 4N NaOH (0.25 mL). The reaction mixture is stirred at 25° C. for 5 minutes. The reaction mixture is evaporated in vacuo, to remove MeOH then cooled in an ice bath and acidified with concentrated HCl. The resultant solid is collected by filtration and triturated in CHCl3 to afford [1-(3,4-dichloro-benzyl)-1H-pyrrolo[2,3-b]pyridine-3-yl]-acetic acid; MH+=335.

Workup

customThe reaction mixture is evaporated in vacuo
customto remove MeOH
temperaturethen cooled in an ice bath
filtrationThe resultant solid is collected by filtration
customtriturated in CHCl3

Sources & evidence

ORD record: ord-8dc6db8f6d204697b72d327ea4785fdc
Source dataset: uspto-grants-2015_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09169251B2

Reaction notes

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