The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Feb. 11, 1998
Bernard Joseph Banks, Sandwich, GB;
Pfizer Inc., New York, NY (US);
Abstract
Parasiticidal pyrazole derivatives of formula (I) wherein: R,represents CN, C,alkoxycarbonyl, NO,, CHO, C,alkanoyl, phenyl optionally substituted by one or more halogen, or C,alkyl optionally substituted by one or more halogen; R,represents a group of formula (II), (III) or (IV) in which: R,represents H, halogen, carbamoyl, cyano, tri(C,alkyl)silyl, C,alkyl (optionally substituted by one or more halogen, OH or C,alkoxy), C,alkoxycarbonyl, phenyl, or a 5- or 6-membered ring heterocycle which is saturated or partially or fully unsaturated and contains up to 4 hetero-atoms independently selected from up to 4 N atoms, up to 2 O atoms and up to 2 S atoms and which is attached to the alkynyl moiety by an available C, S or N atom where the valence allows; and R,, R,and R,each independently represents H, halogen, phenyl optionally substituted by one or more halogen, CN or C,alkyl optionally substituted by one or more halogen; R,represents H, C,alkyl, halogen, NH,, NH(C,alkanoyl), NH(C,alkoxycarbonyl), N(C,alkoxycarbony),, NH(C,alkyl), N(C,alkyl),, NHCONH(C,alkyl), N-pyrrolyl, NHCONH(phenyl optionally substituted by one or more halogen), N—CH(phenyl), OH, C,alkoxy, SH or S(O),(C,alkyl optionally substituted by one or more halogen) where n is 0, 1 or 2; and R,, R,and R,each independently represents H, halogen, C,alkyl optionally substituted by one or more halogen, C,alkoxy optionally substituted by one or more halogen, S(O),(C,alkyl optionally substituted by one or more halogen) where n is 0, 1 or 2, or CH,CO, CN, CONH,, CSNH,, OCF,, SCF,or SF,; or a pharmaceutically or veterinarily acceptable salt thereof.