Methanol → HCID 20695532, compound

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Reaction Steps

A solution of ethyl 2-{{2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-4-fluorophenyl}imino}-4-oxo-5-{[(trityloxy)carbamoyl]-methyl}-3-thiazolidineacetate (entire sample from Example 23) and triisopropylsilane (1 mL) in trifluoroacetic acid (19 mL) is stirred at room temperature for 4 hours, cooled with an ice-water bath, and filtered. The resultant filtrate is concentrated in vacuo and chased three times with toluene to obtain a solid. Column chromatography of the solid using silica gel and a 7.5% methanol in methylene chloride solution gives the title product as a yellow solid which is identified by 1H NMR spectral analysis.

Provenance & Evidence