| 摘要 |
<p>A compound for medical use having the general formula (I) and the pharmaceutically acceptable salts thereof, wherein is an optional double bond; X1and Y1 are heteroatoms; Y2 is optional and is a heteroatom; X2 is independently selected from oxygen (0), nitrogen (N) and sulfur (S) when is a double bond and is independently selected from a hydroxyl (-OH), thiol (-SH) when is a single bond; and Z1, Z2 and Z3 are independently selected from the group consisting of optionally substituted aromatic ring group, heterocyclic group, straight or branched chain alkyl group, alkenyl group, alkynyl group, hydroxyl group, alcohols, straight or branched chain alkoxy group, cyano group, carboxyl group and ester group.</p> |
