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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1035209Generated: October 31, 2026

Ethyl 5-phenyl-1,3,4-oxadiazole-2-carboxylate → (5-Phenyl-1,3,4-oxadiazol-2-yl)(3-(4-(pyrrolidin-1-ylmethyl)-3-(trifluoromethyl)phenoxy)azetidin-1-yl)methanone

https://huagongshe.com/reaction/1035209

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 5-phenyl-1,3,4-oxadiazole-2-carboxylateHCID 651752—
Reactant1-(4-(Azetidin-3-yloxy)-2-(trifluoromethyl)benzyl)pyrrolidineHCID 66653277—
Product(5-Phenyl-1,3,4-oxadiazol-2-yl)(3-(4-(pyrrolidin-1-ylmethyl)-3-(trifluoromethyl)phenoxy)azetidin-1-yl)methanoneHCID 5659839877%

Reaction Steps

Using a similar protocol as described in Example 16 employing 45A (0.19 g, 0.65 mmol) and ethyl 5-phenyl-1,3,4-oxadiazole-2-carboxylate (0.15 g, 0.71 mmol) as starting materials afforded 230 mg (77%) of 45 as a solid. 1H NMR (500 MHz, CDCl3): δ 1.81 (s, 4H), 2.55 (s, 4H), 3.74 (s, 2H), 4.35 (dd, 1H), 4.67 (dd, 1H), 4.78 (dd, 1H), 5.14 (m, 2H), 6.93 (d, 1H), 7.05 (d, 1H), 7.54 (t, 2H), 7.60 (t, 1H), 7.73 (d, 1H), 8.17 (d, 2H), MS (APCI+) m/z 473 [M+H]+, LC purity: 97%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08546375B2
Source datasetuspto-grants-2013_10
ORD IDord-6306331008c84e868b88d3fff74311f0
Source noteuspto-grants-2013_10