| abstract |
N-(arylthioalkyl)-N'-(aminoalkyl)ureas and thioureas and oxidation derivatives having the formula <IMAGE> wherein B is thio, sulfinyl or sulfonyl; R1 and R2 are hydrogen, loweralkyl, cycloalkyl, 2-furanyl, phenyl, substituted phenyl or phenyl-loweralkyl and R3 and R4 are hydrogen, loweralkyl, phenyl or phenyl-loweralkyl wherein phenyl is optionally substituted, or R3 and R4 taken with the adjacent nitrogen form a heterocyclic residue. |