[5(6)-(benzisoxa-,benzisothia-or indazol-3-yl)-1H-benzimidazol-2-yl]carbamates
Patent 5256681 Issued on October 26, 1993. Estimated Expiration Date: 
August 27, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 27, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3657267 InventorsAssigneeApplicationNo. 752521 filed on 08/27/1991US Classes:514/373, Polycyclo ring system having the thiazole ring as one of the cyclos514/379, Polycyclo ring system having the oxazole ring as one of the cyclos514/388, Nitrogen double bonded directly at 2-position of the diazole ring, or tautomeric equivalent548/212, Nitrogen attached directly to the thiazole ring by nonionic bonding548/241, Polycyclo ring system having the oxazole ring as one of the cyclos548/305.1The additional hetero ring is a cyclo in a polycyclo ring system (e.g., benzofuranyl-benzimidazole, etc.)ExaminersPrimary: Gerstl, RobertAttorney, Agent or FirmInternational ClassesC07D 413/04C07D 403/04 C07D 417/04 A61K 031/415 Abstract[5(6)-(benzisoxa-, benzisothia- or indazol-3-yl)-1H-benzimidazol-2-yl]carbamates of formula (I) wherein R1 is hydrogen, C1-4 alkyl, halo, hydroxy or C1-4 alkyloxy; R2 is C1-4 alkyl; and X is O, S, SO, SO2 or NR3, said R3 being hydrogen, C1-4 alkyl, aryl or arylC1-4 alkyl. The compounds of formula (I) have anthelminthic properties. Compositions containing said compounds as active ingredient, a method of combating helminths, and a process for preparing said compounds and compositions.Field of SearchNitrogen attached directly to the thiazole ring by nonionic bondingPolycyclo ring system having the oxazole ring as one of the cyclos The additional hetero ring is a cyclo in a polycyclo ring system (e.g., benzofuranyl-benzimidazole, etc.) Polycyclo ring system having the thiazole ring as one of the cyclos Polycyclo ring system having the oxazole ring as one of the cyclos Nitrogen double bonded directly at 2-position of the diazole ring, or tautomeric equivalent |
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