| 摘要 |
A solid dispersion or medicinal solid dispersion preparation which comprises a water-soluble polymer and either a phenylalanine compound represented by the formula (1) [wherein A represents the formula (2), etc.; B represents alkoxy, etc.; E represents hydrogen, etc.; D represents substituted phenyl, etc.; T, U, and V each represents carbonyl, etc.; Arm represents a benzene ring, etc.; R1 represents alkyl, etc.; R2, R3, and R4 are the same or different and each represents hydrogen, substituted amino, etc.; and J and J' each represents hydrogen, etc.] or a pharmaceutically acceptable salt of the compound; a process for producing the dispersion or preparation; and a solubilized medicinal preparation which comprises the compound (I) or pharmaceutically acceptable salt and a dissolution agent. Although the medicinal solid dispersion preparation or solubilized medicinal preparation contains as an active ingredient a phenylalanine compound represented by the formula (1), which is a sparingly soluble drug, it has high solubility and high oral absorbability.
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