[((2S,3R,4R,5S)-1-Benzyl-3,4-bis-benzyloxy-5-benzyloxymethyl-pyrrolidin-2-yl)-difluoro-methyl]-phosphonic acid diethyl ester

[((2R,3R,4R,5S)-1-Benzyl-3,4-bis-benzyloxy-5-benzyloxymethyl-pyrrolidin-2-yl)-difluoro-methyl]-phosphonic acid diethyl ester

((2R,3R,4R,5S)-2-Benzylamino-3,4,6-tris-benzyloxy-1,1-difluoro-5-hydroxy-hexyl)-phosphonic acid diethyl ester

((2S,3R,4R,5S)-2-Benzylamino-3,4,6-tris-benzyloxy-1,1-difluoro-5-hydroxy-hexyl)-phosphonic acid diethyl ester

(2R,3R,4S)-2,3,5-tris(benzyloxy)-4-(((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)pentyl pivalate