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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1363341Generated: October 26, 2026

Sodium hydride → (+/-)-trans-2-(2-Bromo-5-methoxy-phenyl)-8-(2-hydroxymethyl-1-methyl-pyrrolidin-3-yl)-5,7-dimethoxy-chromen-4-one

https://huagongshe.com/reaction/1363341

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantMethyl 2-bromo-5-methoxybenzoateHCID 2776849—
Reactant(-)-trans-1-[2-Hydroxy-3-(2-hydroxymethyl-1-methyl-pyrrolidin-3-yl)-4,6-dimethoxyphenyl]-1-ethanoneHCID 59318484—
SolventDimethylformamideHCID 6228—
Product(+/-)-trans-2-(2-Bromo-5-methoxy-phenyl)-8-(2-hydroxymethyl-1-methyl-pyrrolidin-3-yl)-5,7-dimethoxy-chromen-4-oneHCID 66933669—

Reaction Steps

Compound of example 6 (1.5 g, 4.85 mmol) in dry DMF (25 mL) was reacted with methyl 2-bromo-5-methoxybenzoate (3.11 g, 12.69 mmol) in the presence of NaH (50%, 1.16 g, 24.17 mmol) as described in example 16, to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07884127B2
Source datasetuspto-grants-2011_02
ORD IDord-6d1a12b80889446ba1514cdce30ced28
Source noteuspto-grants-2011_02