methyl (2S)-2-{[tert-butyl(diphenyl)silyl]oxy}-6-[(2R,S)-tetrahydro-2H-pyran-2-yloxy]-hex-4-ynoate

(2S)-1-[(4-methoxybenzyl)oxy]-2-{[tert-butyl(diphenyl)silyl]oxy}-6-[(2R,S)-tetrahydro-2H-pyran-2-yloxy]hex-4-yne