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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 75779Generated: October 26, 2026

Cyclohexyl isocyanate → 3-[4-(3-Cyclohexyl-ureido)-phenyl]-isoxazole-5-carboxylic acid ethyl ester

https://huagongshe.com/reaction/75779

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclohexyl isocyanateHCID 18502—
ReactantPotassium BromideHCID 253877—
ReactantEthyl 3-(4-aminophenyl)isoxazole-5-carboxylateHCID 53407704—
Reactant3-[4-(3-Phenyl-ureido)-phenyl]-isoxazole-5-carboxylic acid ethyl esterHCID 67352240—
Product3-[4-(3-Cyclohexyl-ureido)-phenyl]-isoxazole-5-carboxylic acid ethyl esterHCID 6735465375%

Reaction Steps

The title compound was prepared from 3-(4-amino-phenyl)-isoxazol-5-carboxylic acid ethyl ester and cyclohexyl isocyanate by same procedure as set forth for the preparation of 3-[4-(3-phenyl-ureido)-phenyl]-isoxazole-5-carboxylic acid ethyl ester and was obtained in 75% yield. Mass (ES+), 358 (M++1); IR (KBr): 3304, 2928, 2852, 1731, 1634, 1570 (br); 1H NMR (DMSO-d6) δ: 1.33 (t, 3H), 1.14-1.81 (4×m, 10H), 3.45 (br, 1H), 4.37 (q, 2H), 6.18 (d, 1H), 7.50 (d, 2H), 7.60 (s, 1H), 7.79 (s, 1H), 7.8.1 (d, 2H), 8.59 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08835428B2
Source datasetuspto-grants-2014_09
ORD IDord-53f4d7ff59f245f59e1bfcfa30d2f0b4
Source noteuspto-grants-2014_09