Novel compounds of the formula I, in which R, R
1
, R
2
and R
3
are as defined in patent claim 1, are inhibitors of coagulation factor Xa and can be employed for the prophylaxis and/or therapy of thromboembolic diseases and for the treatment of tumours.
式 I 的新型化合物,其中 R、R
1
, R
2
和 R
3
是
凝血因子 Xa 的
抑制剂,可用于预防和/或治疗血栓栓塞性疾病和肿瘤。