(1S,2S,2'S,3a'S,5R)-2-isopropyl-5,5'-dimethyl-2'-(((2R,3S,4R,5R,6R)-3,4,5-tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-yl)methyl)dihydro-2'H-spiro[cyclohexane-1,6'-imidazo[1,5-b]isoxazol]-4'(5'H)-one

(3S,5R,6S,9R)-3-[(S)-2-Hydroxy-3-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-propyl]-6-isopropyl-1,9-dimethyl-1,4-diaza-spiro[4.5]decan-2-one

(3S,5R,6S,9R)-3-[(S)-2-Hydroxy-3-((2R,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-propyl]-6-isopropyl-1,9-dimethyl-1,4-diaza-spiro[4.5]decan-2-one

(3S,5R,6S,9R)-3-[(S)-2-Hydroxy-3-((2R,3R,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-propyl]-6-isopropyl-1,9-dimethyl-1,4-diaza-spiro[4.5]decan-2-one

Acetic acid (2R,3S,4R,5S,6R)-3-acetoxy-2-acetoxymethyl-5-acetylamino-6-[(S)-2-hydroxy-3-((2S,5R,6S,9R)-6-isopropyl-4,9-dimethyl-3-oxo-1,4-diaza-spiro[4.5]dec-2-yl)-propyl]-tetrahydro-pyran-4-yl ester