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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 17223Generated: October 25, 2026

Hydrazine hydrate (1:1) → 1H-Indole-2-carboxylic acid, 1-methyl-

https://huagongshe.com/reaction/17223

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantN-(4-{4-amino-7-[6-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)hex-1-ynyl]thieno[3,2-c]pyridin-3-yl}-2-methoxyphenyl)-1-methyl-1H-indole-2-carboxamideHCID 18451281—
SolventEthanolHCID 702—
Product1H-Indole-2-carboxylic acid, 1-methyl-HCID 2769533.6%

Reaction Conditions

Temperature50 °C

Reaction Steps

A solution of N-(4-{4-amino-7-[6-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)hex-1-ynyl]thieno[3,2-c]pyridin-3-yl}-2-methoxyphenyl)-1-methyl-1H-indole-2-carboxamide (0.078 g, 0.119 mmol) in ethanol (5 mL) was treated with hydrazine monohydrate (0.048 g, 0.955 mmol). The reaction mixture was stirred for 15 hours at 50° C. The solvent was removed under reduced pressure. The compound was purified by preparative HPLC to afford 0.007 g (10%) the title compound. 1H NMR (DMSO-d6, 400 MHz) δ 9.463 (s, 1H), 8.05-7.98 (m, 1H), 7.94 (s, 1H), 7.65-7.6 (m, 1H), 7.561-7.519 (m, 2H), 7.304-7.265 (m, 2H), 7.124 (s, 1H), 7.104-7.084 (m, 1H), 7.046-7.021 (m, 1H), 5.736 (brs, 2H), 3.99 (s, 3H), 3.867 (s, 3H), 2.7-2.6 (m, 2H), 2.58-2.5 (m, 2H), 1.6 (m, 4H); LCMS (Conditions a) Rt 3.45 min (95%), M+ 524.6.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07737160B2
Source datasetuspto-grants-2010_06
ORD IDord-05ce42efac8242bf9c29c5fd0efbd898
Source noteuspto-grants-2010_06