| 摘要 |
<p>This invention relates to novel compounds of the formula wherein R1 is lower alkenyl or lower alkynyl; R2 is lower alkenyl, lower alkynyl or cycloalkyl; R3 is hydrogen; R4 is alkyl, cycloalkyl or lower alkoxycarbonylalkyl or R2 and R3 are joined to form dimethylen?oxy (i.e. -CH2OCH2-) or R3 and R4 taken together with the nitrogen to which they are attached, form a 5- to 7 - membered heterocyclic ring, compositions containing said compounds and a method of employing said compounds as arthropod repellents.</p> |
