期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 10, 期 4, 页码 315-317出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0960-894X(99)00693-9
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4-Aza-2,3-dehydro-4-deoxypodophyllotoxin analogues 3a-n were synthesized through quinolines 2a-n. Comparison of their cytotoxicity against P-388 leukemia cells revealed that the steric effects of the ring B substituents on the activity are greater than the electronic effects, while the presence of a methoxy group on the ring E is not essential to exhibit potent cytotoxicity. Analogues 3a and 3b proved to be more than twice as cytotoxic as natural podophyllotoxin (1). (C) 2000 Elsevier Science Ltd. All rights reserved.
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