| 摘要 |
The present invention provides novel methods of inhibiting aortal smooth muscle cell proliferation, particularly restenosis, in humans, comprising administering to a human in need of treatment an effective amount of a compound of formula I (I) wherein R1 and R2 may be the same or different provided that, when R1 and R2 are the same, each is a methyl or ethyl group, and, when R1 and R2 are different, one of them is a methyl or ethyl group and the other is a benzyl group, or a pharmaceutically acceptable salt thereof.
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