Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1006358Generated: October 30, 2026

Water → HCID 69819839, compound

https://huagongshe.com/reaction/1006358

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPhenylboronic AcidHCID 66827—
ReactantHCID 69819834HCID 69819834—
CatalystHCID 178418397HCID 178418397—
Solvent1,2-DimethoxyethaneHCID 8071—
SolventSodium CarbonateHCID 10340—
ProductHCID 69819839HCID 69819839164.6%

Reaction Conditions

Temperature85 °C

Reaction Steps

(4R,8aS)-4-Benzhydryl-2-(2-methoxy-5-bromobenzyl)octahydropyrrolo[1,2-a]pyrazine dihydrochloride (29.8 mg) was dissolved in a mixture of 1,2-dimethoxyethane (0.5 ml) and 2M aqueous sodium carbonate (0.16 ml). Then phenylboronic acid (9.01 mg) and tetrakis(triphenylphosphine)palladium (6.1 mg) were added to the solution at room temperature. The whole was stirred for 2 hours at 85° C. The reaction mixture was poured into water, extracted with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate and evaporated under reduced pressure. The resulting residue was purified by preparative TLC (0.5 mm) with a mixture of dichloromethane and methanol (15:1) as an eluent, and treated with 4N hydrogen chloride in ethyl acetate to give (4R,8aS)-4-benzhydryl-2-[(4-methoxy-[1,1′-biphenyl]-3-yl)methyl]octahydropyrrolo[1,2-a]pyrazine dihydrochloride (24.4 mg) as a brownish power.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06787543B2
Source datasetuspto-grants-2004_09
ORD IDord-48b07ced20824e3c9a9b95872dd96dfc
Source noteuspto-grants-2004_09