SULFONYLSEMICARBAZIDE DERIVATIVE AND COMPOSITION FOR KEEPING CUT FLOWER FRESHNESS
申请人:MEIJI SEIKA KAISHA LTD.
公开号:EP0714889A1
公开(公告)日:1996-06-05
A sulfonylsemicarbazide derivative represented by general formula (I) and a chemical for keeping cut flower freshness containing the same as the active ingredient, wherein R¹ represents C₃-C₄ alkyl, optionally substituted phenyl pyridyl or thienyl, etc.; and R² and R³ represent each hydrogen, lower alkyl, alkoxyalyl, alkoxyalkyl, -C(X)-X-R⁴ (wherein X represents oxygen or sulfur; and R⁴ represents alkyl), etc., or R² and R³ together with the nitrogen atom to which they are bonded may form a C₄-C₅ heterocycle or -N=CR⁵(R⁶).
R²和 R³ 分别代表氢、低级烷基、烷氧基烷基、烷氧基烷基、-C(X)-X-R⁴(其中 X 代表氧或硫;R⁴ 代表烷基)等、或 R² 和 R³ 与它们所结合的氮原子可形成 C₄-C₅ 杂环或 -N=CR⁵(R⁶)。