| 摘要 |
<p>Compounds of the formula (I) and salts thereof:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="26" wi="95" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wnerem:
<UnorderedLists id="ula01" listStyle="none"><ListItem>A is a bond, -CH<Sub>2</Sub>- or -CH=CH-;</ListItem><ListItem>R<Sup>2</Sup> is hydrogen and R<Sup>1</Sup> is selected from C<Sub>1-4</Sub> alkyl, hydroxyl, C<Sub>1-4</Sub> alkoxy, C<Sub>1-4</Sub> alkanoyloxy, hydrogen, halogen, nitro, cyano, and amino optionally substituted by one or two C<Sub>1-4</Sub> alkyl groups or by C<Sub>1-4</Sub> alkanoyl;</ListItem><ListItem>R<Sup>4</Sup> is C<Sub>1-4</Sub> alkyl, hydroxy, C<Sub>1-4</Sub> alkoxy, C<Sub>1-4</Sub> alkanoyloxy or n<Sup>i</Sup>trato;</ListItem><ListItem>R<Sub>2</Sub>N is 1-piperidyl, morpholino or 4-methyl-1-piperazyl, optionally substituted by one or two methyl groups in the 2-, 4- or 6- positions as apt, or 1-pyrrolidyl substituted by one or two methyl groups.</ListItem><ListItem>m is 0 or 1; and</ListItem><ListItem>n is 0 to 3</ListItem></UnorderedLists>
a process for their preparation and compositions containing them.</p> |
