| pyrimidine, 4-chloro-2-(2-hydroxyethylamino)-6-(4-methylpiperazino)-5-methylthi |
| 2-n-(beta-hydroxyethyl)amino-4-n-methylpiperazino-6-chloro-5-methylthiop yrim |
| 4-chloro-2-(2-hydroxyethylamino)-6-(4-methylpiperazino)-5-methylthiopyri midi |
| 4-chloro-2-(2-hydroxyethylamino)-6-(4-methylpiperazino)-5-methylthio-pyrimidin |
