(S)-2-{(S)-2-[2-(2-{(S)-3-(4-Hydroxy-phenyl)-2-[((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-ylmethyl)-amino]-propionylamino}-acetylamino)-acetylamino]-3-phenyl-propionylamino}-4-methyl-pentanoic acid

methyl (((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl)-L-tyrosylglycylglycyl-L-phenylalanyl-L-leucinate

(E)-3-((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-yl)-acrylic acid methyl ester