p-Toluenesulfonic acid → HCID 86756736, compound

Participants

Reaction Steps

A solution of 0.080 g of (E)-2(R)-[1(S)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl]-4-(4-nitrophenyl)-3-butenyl]-2′-(methanesulphonyl)-4-methyl-2′-phenylvalerohydrazide in a mixture of 3 ml of methanol and 1.5 ml of dichloromethane was treated with 0.020 g of 4-toluenesulphonic acid. The mixture was stirred for 5 hours at room temperature and the solution was evaporated. The resulting gum was triturated with diethyl ether to give 0.063 g of (E)-2(R)-[1(S)-(hydroxycarbamoyl)-4-(4-nitrophenyl)-3-butenyl]-2′-(methanesulphonyl)-4-methyl-2′-phenylvalerohydrazide in the form of a light-brown solid.

Provenance & Evidence