| 摘要 |
The present invention relates to a stable liquid preparation comprising a camptothecin derivative which is prepared by binding a compound of the formula [I]:wherein R1 is a substituted or unsubstituied lower alkyl group, ?1 is a group of the formula: -NHR2 (R2 is a hydrogen atom or a lower alkyl group) or a hydroxy group and Alk is a straight or branched chain alkylene group optionally interruptedby an oxygen atom, and a polysaccharide having carboxyl groups via an amino acid or a peptide, or a pharmaceutically acceptable sail thereof, which is adjusted to pH 5-8, or a stable pharmaceutical composition produced by lyophilizing said liquid preparation.
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