Thiobarbituric acid derivatives and their use as anthelminthics

  • US 4,670,441 A
  • Filed: 07/05/1985
  • Issued: 06/02/1987
  • Est. Priority Date: 07/06/1984
  • Status: Expired due to Fees
First Claim
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1. A 5-phenylcarbamoylthiobarbituric acid compound of the formula I ##STR20## wherein R1 and R2 are each independently C1 -C5 alkyl or methoxy,R3 is unsubstituted pyridyl or pyridyl which is substituted by 1 to 3 identical or different members selected from the group consisting of C1 -C5 alkyl, halogen, nitro and C1 -C5 haloalkyl having 1 to 5 halogen atoms, andR4 and R5 are each independently hydrogen, halogen, C1 -C5 alkyl, C1 -C5 haloalkyl having 1 to 3 halogen atoms, or are C1 -C3 alkoxy or nitro,or a tautomer or salt thereof.

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