9-Alkyl, morpholinyl anthracyclines in the circumvention of multidrug resistance.

  title={9-Alkyl, morpholinyl anthracyclines in the circumvention of multidrug resistance.},
  author={Helen M. Coley and Peter R. Twentyman and Paul Workman},
  journal={European journal of cancer},
  volume={26 6},
The intramolecular combination of 9-alkyl substitution in the anthracycline A-ring plus incorporation of the amino group of the daunosamine sugar within a morpholinyl ring led to the retention of almost complete activity against P-glycoprotein positive, multidrug resistant variants of a mouse mammary tumour line and a human small cell lung cancer line. Resistance factors were close to unity. These structural elements may prevent efflux by the P-glycoprotein multidrug transporter. The use of 9… CONTINUE READING

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