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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 332289Generated: October 25, 2026

Oxalic acid--2-oxa-6-azaspiro(3.3)heptane (1/1) → [6-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridin-3-yl]-(2-oxa-6-aza-spiro[3.3]hept-6-yl)-methanone

https://huagongshe.com/reaction/332289

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic acid--2-oxa-6-azaspiro(3.3)heptane (1/1)HCID 53308464—
Reactant6-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-nicotinic acidHCID 66599213—
Product[6-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridin-3-yl]-(2-oxa-6-aza-spiro[3.3]hept-6-yl)-methanoneHCID 5733613676%

Reaction Steps

As described for example 8b, 6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-nicotinic acid (100 mg, 0.32 mmol) was converted, using 2-oxa-6-aza-spiro[3.3]heptane oxalate instead of methylamine, to the title compound (96 mg, 76%) which was obtained as an off white solid. MS: m/e=392.4 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877783B2
Source datasetuspto-grants-2014_11
ORD IDord-4a7f0a86d06e4909b28c5d30c0ae8d2c
Source noteuspto-grants-2014_11