Condensation of benzyl carbazate (I) with 2,5-dimethoxytetrahydrofuran (II) affords the N-benzyloxycarbonyl aminopyrrole (III). The lithiated derivative of (III) is condensed with (R)-glycidyl butyrate (IV) to furnish the chiral oxazolidinone (V). Alcohol (V) is converted to the corresponding mesylate (VI) with methanesulfonyl chloride and triethylamine. Finally, nucleophilic displacement of mesylate (VI) with sodium methoxide affords the target methyl ether.