The present invention relates to compounds of the formula (I)
ArCH₂NHR¹ (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
wherein
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;
R¹ contains not more than eight carbon atoms and is a group
wherein m is 0 or 1;
R⁵ and R⁶ are the same or different and each is hydrogen or C1-3 alkyl optionally substituted by hydroxy;
R⁷ and R⁸ are the same or different and each is hydrogen or C1-3 alkyl;
-C-C is a five-or six-membered saturated carbocyclic ring;
R⁹ is hydrogen, methyl or hydroxymethyl;
R¹⁰, R¹¹ and R¹² are the same or different and each is hydrogen or methyl;
R¹³ is hydrogen, methyl, hydroxy or hydroxymethyl.
本发明涉及式 (I) 的化合物
ArCH₂NHR¹ (I)
或其单甲基或单
乙基醚,式(I)化合物包括总共含有不超过 29 个碳原子的上述醚;其酯;其盐;
其中 Ar 为式的环系
其中
是含有至少一个杂原子和两个双键的五元环或其取代衍
生物或其共振形式,杂原子最好是被甲基氢或乙基氢取代的氧、
硫或氮;
R¹ 含有不超过 8 个碳原子并且是一个基团
其中 m 为 0 或 1;
R⁵ 和 R⁶ 可以相同或不同,并且各自为氢或任选被羟基取代的 C1-3 烷基;
R⁷ 和 R⁸ 相同或不同,且各自为氢或 C1-3 烷基;
-C-C是五元或六元饱和碳环;
R𠞙 是氢、甲基或羟甲基;
R¹⁰、R¹¹和R¹²相同或不同,且各自为氢或甲基;
R¹³ 是氢、甲基、羟基或羟甲基。