申请人:WARNER-LAMBERT COMPANY
公开号:EP0178178A2
公开(公告)日:1986-04-16
Novel purine derivatives, particularly novel guanines and hypoxanthines, are described as agents for treating autoimmune diseases. The compounds have the following formula (I):
or a pharmaceutically acceptable acid addition or base salt thereof;
wherein: Rl is OH or SH;
R2 is (i) hydrogen or (ii) NHR in which R is hydrogen or CORe in which R6 is alkyl of one to four carbon atoms, aryl or arylalkyl;
R3 is hydrogen, hydroxyl, mercapto, bromide or NHR in which R is hydrogen or COR6;
n is zero or one, m is zero or one or two or three, with the proviso that m or n is at least one;
R4 and Rs are each, independently, hydrogen, alkyl of from one to four carbon atoms, aryl, arylalkyl, cycloalkyl of from three to six carbon atoms or hydroxyalkyl of from one to four carbon atoms; and
Ar is heteroaryl or heteroaryl substituted by (i) alkyl of from one to four carbon atoms, (ii) alkoxy of from one to four carbon atoms, or (iii) -C = C-C = C- attached to adjacent carbon atoms of the heteroaryl to form a benzo radical, or (iv) halogen; excluding the compound wherein R1 is OH, R2 is amino, R3 is hydrogen, n is zero, m is one, and Ar is 2-furanyl.
新型嘌呤衍生物,特别是新型鸟嘌呤和次黄嘌呤,被描述为治疗自身免疫性疾病的药物。这些化合物具有下式 (I):
或其药学上可接受的酸加成盐或碱式盐;
其中Rl 是 OH 或 SH;
R2是(i)氢或(ii)NHR,其中R是氢或CORe,其中R6是一至四个碳原子的烷基、芳基或芳烷基;
R3 是氢、羟基、巯基、溴化物或 NHR,其中 R 是氢或 COR6;
n 为 0 或 1,m 为 0 或 1 或 2 或 3,但 m 或 n 至少为 1;
R4 和 Rs 各自独立地为氢、一至四个碳原子的烷基、芳基、芳烷基、三至六个碳原子的环烷基或一至四个碳原子的羟烷基;以及
Ar 是杂芳基或被以下物质取代的杂芳基:(i) 1 至 4 个碳原子的烷基,(ii) 1 至 4 个碳原子的烷氧基,或 (iii) 连接到杂芳基相邻碳原子上形成苯偶氮基的-C = C-C = C-,或 (iv) 卤素;不包括 R1 为 OH、R2 为氨基、R3 为氢、n 为零、m 为 1 且 Ar 为 2-呋喃基的化合物。