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25844525277
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note
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While the absolute configuration of the natural material is unknown, the optical rotation measurements on the synthetic material were in agreement with those on material from the natural source.
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44
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0037041320
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note
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c) SYNPHOS was purchased from Strem Chemicals, Inc.;
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47
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note
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d) While SEGPhos (another common ligand employed in conjugate reduction chemistry with copper) is not commercially available, in the near future we hope to test this ligand in the dynamic kinetic resolution process.
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