| 摘要 |
<p>This invention relates to compounds of the formula <IMAGE> wherein X is oxygen, -NH-, or-NCH3-and R is 1-methyl-4-piperidinyl, 4-methyl-1-piperazinyl, endo-8-methyl-8-azabicyclo[3.2.1]oct-3-yl, or exo-8-methyl-8-acabicyclo[3.2.1]oct-3-yl, each of which may optionally have an additional methyl substitutent, a diastereomer or enantiomer thereof, or a non-toxic, pharmacologically acceptable acid addition salt thereof with an inorganic or organic acid.</p> |
