In one aspect, the present invention provides compounds having formula I or IV as shown below: ##STR00001## as further defined herein. In additional aspects, the present invention provides compositions and kits comprising the compounds of the invention and methods for their use, for example, for the prevention or treatment of a cancer.

 
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< Methods of treating anemia by inhibition of vascular endothelial growth factor (VEGF)

> Cloned DNA sequences related to the genomic RNA of lymphadenopathy-associated-virus (LAV) and proteins encoded by said LAV genomic RNA

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