Abstract
| - β-Methoxytyrosine (β-OMeTyr) is a stereoundefined component of papuamides A and B, novelcyclodepsipeptides, with anti-HIV and cytotoxic activities. For structural determination and totalsynthesis of papuamides, all stereoisomers of β-OMeTyr were stereoselectively prepared from (S)-and (R)-serine, respectively.
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