Synthesis and Anthelmintic Activity of 7-Hydroxy- 5-oxo-5H-thieno[3,2-b]pyran-6-carboxanilides and -6-thiocarboxanilides
摘要:
7-Hydroxy-5-oxo-5H-thieno [3,2-b]pyran-6-carboxanilides and -6-thiocarboxanilides represent a novel series of anthelmintic compounds, with broad-spectrum activity against important parasitic nematodes in sheep and dogs. In particular, an improved efficacy against Trichostrongylus colubriformis in sheep over the related 3-carbamoyl-4-hydroxycoumarins has been noted. New synthetic routes to the key intermediate, 7-hydroxythieno[3,2-b]pyran-5-one, have been developed.
Synthesis and Anthelmintic Activity of 7-Hydroxy- 5-oxo-5H-thieno[3,2-b]pyran-6-carboxanilides and -6-thiocarboxanilides
摘要:
7-Hydroxy-5-oxo-5H-thieno [3,2-b]pyran-6-carboxanilides and -6-thiocarboxanilides represent a novel series of anthelmintic compounds, with broad-spectrum activity against important parasitic nematodes in sheep and dogs. In particular, an improved efficacy against Trichostrongylus colubriformis in sheep over the related 3-carbamoyl-4-hydroxycoumarins has been noted. New synthetic routes to the key intermediate, 7-hydroxythieno[3,2-b]pyran-5-one, have been developed.
Novel substituted thieno[3,2-b]pyran-5,7-diones of the general formula (I) ##STR1## Processes for their preparation and their use as herbicides and as plant growth regulators and novel intermediates of the formula (VI) ##STR2## (in which R.sup.1, R.sup.2, X, Y and Z have the meaning given in the description).
Thieno[3,2-b]pyranone, Verfahren zu ihrer Herstellung, Zwischenprodukte, ihre Verwendung zur Bekämpfung von Parasiten und zur Regulierung des Pflanzenwachstums
申请人:BAYER AG
公开号:EP0483582A1
公开(公告)日:1992-05-06
Neuartige substituierte Thieno[3,2-b]pyranone allgemeinen Formel (I)
Verfahren zu ihrer Herstellung und ihre Verwendung als Herbizide und Pflanzen-Wachstumsregulatoren sowie neuartige Zwischenprodukte der Formel (VI)
(worin R¹, R², X, Y und Z jeweils die in der Beschreibung angegebenen Bedeutungen haben).
新型取代的噻吩并[3,2-b]吡喃酮通式 (I)
它们的制备工艺及其作为除草剂和植物生长调节剂的用途,以及通式(VI)的新型中间体
(其中 R¹、R²、X、Y 和 Z 各具有说明中给出的含义)。
US5201936A
申请人:——
公开号:US5201936A
公开(公告)日:1993-04-13
Synthesis and Anthelmintic Activity of 7-Hydroxy- 5-oxo-5<i>H</i>-thieno[3,2-<i>b</i>]pyran-6-carboxanilides and -6-thiocarboxanilides
7-Hydroxy-5-oxo-5H-thieno [3,2-b]pyran-6-carboxanilides and -6-thiocarboxanilides represent a novel series of anthelmintic compounds, with broad-spectrum activity against important parasitic nematodes in sheep and dogs. In particular, an improved efficacy against Trichostrongylus colubriformis in sheep over the related 3-carbamoyl-4-hydroxycoumarins has been noted. New synthetic routes to the key intermediate, 7-hydroxythieno[3,2-b]pyran-5-one, have been developed.