p-Toluenesulfonic acid → HCID 86756730, compound

Participants

Reaction Steps

A solution of 0.32 g of (E)-2(R)-[1(S)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl]-4-phenyl-3-butenyl]-2′-isobutryl-2′-isobutyl-4-methylvalerohydrazide in 10 ml of methanol was treated with 0.03 g of 4-toluenesulphonic acid. The mixture was stirred for 2 hours at room temperature and then the solvent was evaporated to leave a glass. This residue was triturated with diethyl ether to give 0.15 g of (E)-2(R)-[1(S)-(hydroxycarbamoyl)-4-phenyl-3-butenyl]-2′-isobutyryl-2′-isobutyl-4-methylvalerohydrazide in the form of a white solid.

Provenance & Evidence