| 摘要 |
<p>Title derivs of formula (I): (where R1 and R4 are H, alkyl or aryl opt. mono- or disubst. by halogen, NO2, alkyl, alkoxy or alkylmercapto, R2 and R3 are H, halogen, NO2 or rhodanide, or R2 + R3 is alkylene, R5 is H, opt substd. alkyl or aryl opt. mono-or disubst. by NO2, halogen, alkyl, alkoxy, alkylmercapto, alkylamino or carboxyalkyl, and R6 and R7 are H, opt. subst. alkyl, alkenyl, cycloalkyl, alkoxyalkyl, or aryl opt. mono-or disubst. by halogen, lower alkyl, alkoxy, alkylmercapto, alkylamino or carboxyalkyl, or R6 + R7 is alkylene or alkenylene opt. substd. by lower alkyl and/or contg. O, S or N as a chain member, or R5 + R6 is alkylene and R7 has the above significance or is aryl, mono- or disubst. by halogen, NO2, lower alkyl, alkoxy, alkylmercapto or carboxyalkyl) may be prepd. by reacting a cpd. of formula R6R7N-CO-R5 with (I, -N=C(R5)-NR6R7 is NH2) in the presence of an inert solvent.</p> |
