Synthesis and biological evaluation of a conformationally free seco-analogue of the immunosuppressant FR901483.
Bioorg Med Chem 1999;
7:2891-7. [PMID:
10658593 DOI:
10.1016/s0968-0896(99)00250-3]
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Abstract
The synthesis of an azaspirocyclic analogue of FR901483, phosphate 2, is described based on the implementation of a key 5-endo aminocyclization promoted by iodine for direct functionalization of the 1-azaspiro[4.5]decane ring at the C-3 atom. Compound 2 has no inhibitory activity in the cell proliferation assays reported.
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