| 摘要 |
<p>A novel medicinal composition for improving the angiotension-regulating function of the blood vessel endothelium which contains a compound represented by the formula (1): (1) wherein R1 is hydrogen, acyl, or arylalkyloxycarbonyl; and R2 and R3 may be the same or different and each is optionally substituted alkyl, optionally substituted alkenyl, or optionally substituted alkynyl, provided that R2 and R3 may be bonded to each other to form cycloalkyl.</p> |
