| 摘要 |
wherein R1 and R2 are alkyl, aralkyl or aryl having up to 10 carbon atoms; and a and b may be the same or different and are integers from 1 to 8; or a salt thereof with a pharmaceutically acceptable acid. Anti-neoplastic, anti-diarrheal, anti-peristaltic, gastro-intestinal anti-spasmodic, anti-viral, anti-retroviral, anti-psoriasis and insecticidal compositions comprising biologically effective amounts of the above-described amines and biologically acceptable carriers therefor are also disclosed, as well as methods of treatment, administration or application of biologically effective amounts of the polyamines of the invention. Also disclosed are methods for preparing the polyamines of the invention
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