| 摘要 |
<p>The present invention relates to compounds of the formula (I) ArCH2NHR<1> (I) or a monomethyl or monoethyl ether thereof, the compound of formula (I) including the said ethers containing no more than 29 carbon atoms in total; an ester thereof; a salt thereof; wherein Ar is a ring system of formula <CHEM> wherein <CHEM> is a five-membered ring containing at least one heteroatom and two double bonds or a substituted derivative thereof or a resonance form thereof, the heteratom is preferably oxygen, sulphur or nitrogen substituted by hydrogen methyl or ethyl; R<1> contains not more than eight carbon atoms and is a group <CHEM> wherein m is 0 or 1; R<5> and R<6> are the same or different and each is hydrogen or C1-3 alkyl optionally substituted by hydroxy; R<7> and R<8> are the same or different and each is hydrogen or C1-3 alkyl; -C-C is a five-or six-membered saturated carbocyclic ring; R<9> is hydrogen, methyl or hydroxymethyl; R<1><0>, R<1><1> and R<1><2> are the same or different and each is hydrogen or methyl; R<1><3> is hydrogen, methyl, hydroxy or hydroxymethyl.</p> |
