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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 494833Generated: October 26, 2026

N-methoxy-N-methyl-2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-carboxamide → 3-ethyl-1-(2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-yl)-1-pentanone

https://huagongshe.com/reaction/494833

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methoxy-N-methyl-2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-carboxamideHCID 11438480—
ReactantHCID 178444608HCID 178444608—
Product3-ethyl-1-(2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-yl)-1-pentanoneHCID 9902582—

Reaction Steps

The product from Example 71E and 2-ethylbutylmagnesium bromide were processed as described in Example 71F to provide the title compound. 1HNMR (300 MHz, CD3OD) δ 0.9 (m, 6H), 1.23 (m, 1H), 1.20 (m, 6H), 1.75 (m, 1H), 2.1 (m, 2H), 2.35 (m, 1H), 3.05 (m, 1H), 3.2-3.5 (m, 7H), 3.55 (m, 1H), 3.8 (m, 1H), 6.85 (s, 1H), 7.55 (d, 1H) 7.95 (dd, 1H), 8.24 (d, 1H); MS (ESI) m/z 342 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538138B2
Source datasetuspto-grants-2009_05
ORD IDord-3ff5ae2f30a94326a58298f8f23496d7
Source noteuspto-grants-2009_05