The present invention provides a compound of formula (I): ##STR1## wherein Y is sulfur; R.sup.2 and R.sup.3 are the same or different and are hydrogen or C.sub.1-4 alkyl; R.sup.4 is NR.sup.11 R.sup.12 ; R.sup.11, R.sup.12, R.sup.5 and R.sup.6 are the same or different and are hydrogen, C.sub.1-4 alkyl or C.sub.1-12 acyl; R.sup.7, R.sup.8, R.sup.9 and R.sup.10 are the same or different and are hydrogen, halo, C.sub.1-4 haloalkyl, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; and n is 2, 3, 4 or 5; m is 0 or an integer from 1 to 5; or a salt thereof, methods for the preparation of the compounds of the formula (I), intermediates in their preparations, pharmaceutical formulations containing them, and their use in the treatment of neoplastic growth.
本发明提供了一种化合物,其
化学式为(I):##
STR1## 其中Y是
硫;R.sup.2和R.sup.3相同或不同,是
氢或C.sub.1-4烷基;R.sup.4是NR.sup.11 R.sup.12;R.sup.11,R.sup.12,R.sup.5和R.sup.6相同或不同,是
氢,C.sub.1-4烷基或C.sub.1-12酰基;R.sup.7,R.sup.8,R.sup.9和R.sup.10相同或不同,是
氢,卤素,C.sub.1-4卤代烷基,C.sub.1-4烷基和C.sub.1-4烷
氧基;n为2、3、4或5;m为0或1至5的整数;或其盐。本发明还提供了制备式(I)化合物的方法、其制备
中间体、含有它们的制药配方以及它们在治疗肿瘤生长方面的用途。