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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1615271Generated: November 2, 2026

Piperidine → HCID 178507386, compound

https://huagongshe.com/reaction/1615271

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant7-aminoindolin-2-oneHCID 6423312—
Reactant1H-Indazole-6-carbaldehydeHCID 18538368—
SolventMethanolHCID 887—
ProductHCID 178507386HCID 17850738628%

Reaction Conditions

Temperature60 °C

Reaction Steps

A 13 mg (0.0877 mmol) solution of 7-aminooxindole (T. Nakashima & I. Suzuki, Chem. Pharm. Bull. (1969) 11, 2293) and 1H-indazole-6-carbaldehyde (14 mg, 0.0965 mmol) in MeOH (1.0 mL) was treated with piperidine (˜1 uL, 0.00877 mmol) and the reaction was heated to 60° C. for 4 hours. The MeOH was then removed in vacuo and the residue treated with 95:5 CH2Cl2/MeOH. The resulting precipitate was filtered and washed with 95:5 CH2Cl2/MeOH to obtain the title compound as a orange powder (6.7 mg, 28%). NMR (400 MHz, CD3OD) δ 8.14 (s, 1H), 7.94-7.87 (m, 3H), 7.46 (d, J=8.19 Hz, 1H), 7.31 (d, J=7.63 Hz, 1H), 6.90 (d, J=7.89 Hz, 1H), 6.81 (t, J=7.79 Hz, 1H); MS ESI 277.0 [M+H]+, calcd for [C16H12N4O+H]+ 277.11.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765748B2
Source datasetuspto-grants-2014_07
ORD IDord-27743cb00f1742eb8ffe21ad0fee707c
Source noteuspto-grants-2014_07