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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2169173Generated: November 2, 2026

6-biphenyl-2-ylmethyl-9-hydroxy-2-methyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione → 6-[1-(4-chlorophenyl)-cyclopentylmethyl]-9-hydroxy-2-isopropyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione

https://huagongshe.com/reaction/2169173

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-biphenyl-2-ylmethyl-9-hydroxy-2-methyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dioneHCID 86725801—
Reactant9-Benzyloxy-6-[1-(4-chlorophenyl)-cyclopentylmethyl]-2-isopropyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dioneHCID 86725823—
Product6-[1-(4-chlorophenyl)-cyclopentylmethyl]-9-hydroxy-2-isopropyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dioneHCID 8672582662.8%

Reaction Steps

6-[1-(4-chlorophenyl)-cyclopentylmethyl]-9-hydroxy-2-isopropyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione (32-03) (465 mg, 62.8%) was synthesized from 9-benzyloxy-6-[1-(4-chlorophenyl)-cyclopentylmethyl]-2-isopropyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione (31-03) (900 mg, 1.779 mmol) as an off-white solid following the procedure as described for 6-biphenyl-2-ylmethyl-9-hydroxy-2-methyl-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione (12-01).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09045486B2
Source datasetuspto-grants-2015_06
ORD IDord-d82d87102e2348a5a2ff6a57c11b6fc6
Source noteuspto-grants-2015_06