| 摘要 |
<p>Pteridine derivatives of formula (I) are new: (where R= beta dimethylamino ethyl, (and its trimethylammonium iodide), beta N-piperidinyl ethyl, beta N-morpholinyl ethyl, beta N-piperazinyl ethyl, beta N-pyrrolidinyl ethyl, beta diisopropylamino ethyl, beta amino ethyl, beta methylamino ethyl, pivaloyl(as its trifluoroacetate)and propoxy carbonyl). In the parent patent, (I) are covered by the claims of FR77.39798 but were not specifically described.</p> |
