Ethyl 5-(2,4-bis(benzyloxy)-5-chlorophenyl)-3-(ethylcarbamoyl)-4,5'-biisoxazole-3'-carboxylate 、
Lithium aluminium hydride 以to afford the intermediate compound 5-(2,4-bis(benzyloxy)-5-chlorophenyl)-N-ethyl-3′-(hydroxymethyl)-4,5′-biisoxa zole-3-carboxamide (17 mg, 0.03 mmol) in a yield of 25%的产率得到5-(2,4-bis(benzyloxy)-5-chlorophenyl)-N-ethyl-3'-(hydroxymethyl)-4,5'-biisoxazole-3-carboxamide