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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1971665Generated: October 31, 2026

Diethyl Ether → 9-tert-butyl-3-methoxy-2-pyrazin-2-yl-15-(1,3-thiazol-5-yl)-5,6,9,10,11,12-hexahydro[1,5]oxazonino[8',7':4,5]pyrrolo[2,1-a]isoquinolin-8(14H)-one

https://huagongshe.com/reaction/1971665

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
Reactant2-(Tributylstannyl)pyrazineHCID 2737316—
ReactantHCID 58124867HCID 58124867—
CatalystHCID 178418397HCID 178418397—
SolventTolueneHCID 1140—
Product9-tert-butyl-3-methoxy-2-pyrazin-2-yl-15-(1,3-thiazol-5-yl)-5,6,9,10,11,12-hexahydro[1,5]oxazonino[8',7':4,5]pyrrolo[2,1-a]isoquinolin-8(14H)-oneHCID 5093897688.1%

Reaction Steps

A solution of 75 mg of 8e, 150 mg of 2-tributylstannylpyrazine and 16 mg of Pd(PPh3)4 in 2 ml of degassed toluene was heated under N2 atmosphere for 24 hr. The reaction mixture was concentrated and the crude material was chromatographed over silica gel, using a gradient of toluene/acetone. The material isolated was treated with diethyl ether and provided 66 mg of 8g; Mp 235-236° C.; MS-ESI: [M+1] 530.3;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08431564B2
Source datasetuspto-grants-2013_04
ORD IDord-90139107563843cc8ded9f0f0d720cc5
Source noteuspto-grants-2013_04