US 6,982,285 B2 | ||
Control of parasites attached to skin of fish | ||
Hariolf Schmid, Heitersheim (Germany) | ||
Assigned to Novartis Animal Health US, Inc., Greensboro, N.C. (US) | ||
Filed on Jan. 22, 2003, as Appl. No. 10/348,717. | ||
Application 10/348717 is a division of application No. 09/718120, filed on Nov. 20, 2000, granted, now 6,538,031. | ||
Claims priority of application No. 998 11 084 (DE), filed on Nov. 25, 1999. | ||
Prior Publication US 2003/0158260 A1, Aug. 21, 2003 | ||
This patent is subject to a terminal disclaimer. | ||
Int. Cl. A61K 31/17 (2006.01) |
U.S. Cl. 514—595 | 6 Claims |
1. A process for the preparation of a composition for controlling fish parasites, comprising 0.1 to 99% by weight of a compound
of formula (I) ![]() or of one of its physiologically tolerable acid addition salts, wherein X is halogen; X1 is hydrogen or halogen X2, is hydrogen or halogen; —O—Y is in position 3, and Y represents the group ![]() Y1 is hydrogen or halogen; Y2 is hydrogen or halogen; Y3 is hydrogen or halogen; Z1 is hydrogen or C1-C3-alkyl; Z2 is hydrogen or C1-C3-alkyl and U is hydrogen or halogen; and 99.9 to 1% by weight of an excipient that is physiologically tolerated by fish. |