| 摘要 |
<p>The cpds. have formula (I): (where A is opt. substd. by nitro, halogen, lower alkyl, lower alkoxy or SO3 circled negative M circled positive, where M circled positive is a colourless cation; one of Q1 and Q2 is -NZ- and the other is -O-, -S-, or -NZ-, where Z is H or lower alkyl; R1 and R2 are H, lower alkyl (opt. substd. by phenyl, hydroxy or cyano), phenyl (opt. substd. by lower alkyl, lower alkoxy, halogen, or sulphonic acid gp.), or naphthyl; or any QR is morpholino or piperidino).</p> |
