3637. Epsiprantel

Nomenclature

CAS number: 98123-83-2
2-(Cyclohexylcarbonyl)-2,3,6,7,8,12b-hexahydropyrazino[2,1-a][2]benzazepin-4(1H)-one; 2-cyclohexylcarbonyl-4-oxo-1,2,3,4,6,7,12b-octahydropyrazino[2,1-a][2]benzazepine; BRL-38705; Cestex (SKB).
C20H26N2O2; mol wt 326.43.
C 73.59%, H 8.03%, N 8.58%, O 9.80%.

Description and references

Anthelmintic structurally related to praziquantel, q.v. Prepn: R. J. Dorgan, R. L. Elliott, EP 134984; eidem, US 4661489 (1985, 1987 both to Beecham); M. D. Brewer et al., J. Med. Chem. 32, 2058 (1989). Veterinary trials in dogs: R. M. Corwin et al., Am. J. Vet. Res. 50, 1076 (1989); in cats and dogs: B. R. Manger, M. D. Brewer, Br. Vet. J. 145, 384 (1989).

Chemical structure

Properties

White crystals from chloroform/petr ether, mp 189-190°.

Therapeutic Category (Veterinary)

Anthelmintic (Cestodes).