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Disodium 3β,6β-dihydroxy-5α-cholestane disulfate (1) was synthesized in 4 steps with a high overall yield from cholesterol. First, cholesterol (4a) was converted to cholest-4-en-3,6-dione (5a) via oxidation with pyridinium chlorochromate (PCC) and then 5a was reduced by NaBH 4 in the presence of NiCl 2 to produce cholest-3β,6β-diol (6a). The reaction of 6a with the triethylamine-sulfur...
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