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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 912303Generated: November 2, 2026

1-Ethylpiperazine → HCID 43088319, compound

https://huagongshe.com/reaction/912303

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-EthylpiperazineHCID 79196—
Reactant4-chloropyridine-2-carbonyl ChlorideHCID 11095146—
ProductHCID 43088319HCID 43088319—

Reaction Steps

Using 4-chloropicolinic acid chloride and N-ethylpiperazine instead of N-Boc-piperazine, amidation was carried out in the same manner as Step A in Example 1-D-199, to obtain (4-chloro-pyridin-2-yl)-(4-ethyl-piperazin-1-yl)-methanone. Using bis-(4-methoxy-benzyl)-[5-(2-morpholin-4-yl-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)-pyrimidin-2-yl]-amine (232 mg, 0.430 mmol), and the obtained (4-chloro-pyridin-2-yl)-(4-ethyl-piperazin-1-yl)-methanone (120 mg, 0.473 mmol) instead of 4-chloropicolinic acid t-butylamide, amination was carried out in the same manner as Example 1-D-07, to obtain a crude product of [4-(4-{2-[bis-(4-methoxy-benzyl)-amino]-pyrimidin-5-yl}-2-morpholin-4-yl-5,6-dihydro-pyrrolo[2,3-d]pyrimidin-7-yl)-pyridin-2-yl]-(4-ethyl-piperazin-1-yl)-methanone as a yellow solid (225 mg), and then the PMB groups were removed according to the above Deprotection method 2, to obtain the desired compound (D-201) as a yellow powder (85 mg, 57%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022205B2
Source datasetuspto-grants-2011_09
ORD IDord-365069c010884ba1bb334890776359ca
Source noteuspto-grants-2011_09