Selectfluor → (1S,5S)-{1-[5-[(4-amino-3-fluoro-benzenesulfonyl)-isobutyl-amino]-6-(diethoxy-phosphoryloxy)-hexylcarbamoyl]-2,2-diphenyl-ethyl}-carbamic acid methyl ester

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Reaction Steps

The product of step A above, (1S,5S)-(1-{5-[(4-amino-benzenesulfonyl)-isobutyl-amino]-6-phosphonooxy hexylcarbamoyl}-2,2-diphenyl-ethyl)-carbamic acid methyl ester (0.555 g, 0.73 mmol) was dissolved in 5 mL MeCN. Selectfluor (0.26 g, 0.7 mmol) was added and the mixture stirred for 30 min. The mixture was purified by reverse phase preparative HPLC and lyophilized to yield 278 mg (48% yield) white solid.

Provenance & Evidence