(2S,3R,4S,5S)-3,4-Bis-benzyloxy-2-benzyloxymethyl-5-(R)-oxiranyl-tetrahydro-furan

(R)-1-((2S,3S,4R,5S)-3,4-Bis-benzyloxy-5-benzyloxymethyl-tetrahydro-furan-2-yl)-undec-3-yn-1-ol

(S)-1-((2S,3S,4R,5S)-3,4-Bis-benzyloxy-5-benzyloxymethyl-tetrahydro-furan-2-yl)-undec-3-yn-1-ol

(2S,3R,4S,5S)-3,4-Bis-benzyloxy-2-benzyloxymethyl-5-((R)-1-methoxymethoxy-undec-3-ynyl)-tetrahydro-furan

(2S,3R,4S,5S)-3,4-Bis-benzyloxy-2-benzyloxymethyl-5-((S)-1-methoxymethoxy-undec-3-ynyl)-tetrahydro-furan