The invention provides a compound of the formula (1):
or a salt, solvate, N-oxide or tautomer thereof;
wherein either R1 is R1a and R2 is R2a; or R1 is R1b and R2 is R2b; provided that in each case at least one of R1 and R2 is other than hydrogen;
R1a and R2a are the same or different and each is selected from hydrogen, C1-4 alkyl, C2-4 alkenyl and C2-4 alkynyl wherein the C1-4 alkyl is optionally substituted by C1-2 alkoxy;
R1b and R2b are the same or different and are selected from hydrogen, C(O)NR4R5, C(O)R6 and C(O)OR6 where R6 is C1-4 alkyl, R4 and R5 are both C1-4 alkyl, or NR4R5 forms a 4 to 7 membered saturated heterocyclic ring optionally containing a second heteroatom ring member selected from O, N or S and oxidized forms of N and S, the heterocyclic ring being optionally substituted by one or two C1-4 alkyl groups and/or one or two oxo groups; and
R3 is a group D:
wherein the asterisk denotes the point of attachment to the isoindoline ring;
but excluding acetic acid 5-acetoxy-4-isopropyl-2-[5-(4-methyl-piperazin-1-ylmethyl)-1,3-dihydro-isoindole-2-carbonyl]-phenyl ester.
本发明提供了式(1)的化合物:
或其盐,溶剂化物,N-氧化物或互变异构体;其中,R1为R1a且R2为R2a;或R1为R1b且R2为R2b;但在每种情况下,至少有一个R1和R2不是氢;
R1a和R2a相同或不同,并且每个都从氢,C1-4烷基,C2-4烯基和C2-4炔基中选择,其中C1-4烷基可以选择性地被C1-2烷氧基取代;
R1b和R2b相同或不同,选择自氢,C(O)NR4R5,C(O)R6和C(O)OR6,其中R6为C1-4烷基,R4和R5均为C1-4烷基,或NR4R5形成一个4至7个成员的饱和杂环环,可以选择性地含有第二个杂环环成员,所选自O,N或S和氮和
硫的氧化形式,该杂环环可以选择性地被一个或两个C1-4烷基基团和/或一个或两个氧基基团取代;且R3是D基团:
其中星号表示连接到
异吲哚啉环的位置;但不包括
乙酸5-乙酰氧基-4-异丙基-2-[5-(4-甲基
哌嗪-1-基甲基)-1,3-二氢异
吲哚-2-羰基]-苯酯。