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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1426510Generated: November 2, 2026

Methanol → HCID 131732344, compound

https://huagongshe.com/reaction/1426510

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTrifluoroacetic acidHCID 6422—
ReactantAmmonium HydroxideHCID 14923—
ReactantHCID 66597115HCID 66597115—
ProductHCID 131732344HCID 131732344149.1%

Reaction Steps

A solution of 4-(2-tert-butyl-1-methyl-1H-imidazol-4-yl)-1-[2-(trimethylsilyl)-ethoxy]-methyl-1H-pyrrolo[2,3-b]pyridine (0.010 g, 0.000026 mol) in TFA (3 mL, 0.04 mol) was stirred for 2 hours. Then the excess TFA was evaporated and the residue was stirred in methanol (3 mL, 0.07 mol) and NH4OH (1 mL) for 16 hours. The solvents were removed and the product was purified by preparative-HPLC (C18 eluting with a gradient of ACN/H2O containing 0.1% TFA) to afford 442-tut-butyl-1-methyl-1H-imidazol-4-yl)-1H-pyrrolo[2,3-b]pyridine, trifluoroacetate salt (9 mg, 90%). 1H NMR (400 MHz, d6-DMSO): δ 12.24 (s, 1H), 8.38 (br s, 1H), 8.24 (s, 1H), 7.70-7.63 (m, 2H), 7.08 (br s, 1H), 2.55 (s, 3H), 1.51 (s, 9H); MS(ES):255(M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08933086B2
Source datasetuspto-grants-2015_01
ORD IDord-6c4696e89dcf41a08be616730adddae5
Source noteuspto-grants-2015_01