1-[(5S,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-8-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-8-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-8-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-8-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-8-[(benzoyloxy)methyl]-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-8-[(benzoyloxy)methyl]-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-9-hydroxy-2,2-dioxido-8-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-9-hydroxy-2,2-dioxido-8-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-8-[(benzoyloxy)methyl]-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-8-[(benzoyloxy)methyl]-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-9-(Acetyloxy)-4-amino-2,2-dioxido-8-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-9-(Acetyloxy)-4-amino-2,2-dioxido-8-[(phenylmethoxy)methyl]-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-9-(Acetyloxy)-4-amino-8-[(benzoyloxy)methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-9-(Acetyloxy)-4-amino-8-[(benzoyloxy)methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]-3-hexyl-5-methyl-2,4(1H,3H)-pyrimidinedione

[(5R,6R,8R,9R)-4-Amino-8-(3-hexyl-3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]methyl [1,1′-biphenyl]-2-carboxylate

[(5S,6R,8R,9R)-4-Amino-8-(3-hexyl-3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-6-yl]methyl [1,1′-biphenyl]-2-carboxylate

1-[(5R,6R,8R,9R)-4-Amino-6-[(benzoyloxy)methyl]-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-3-nonyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-6-[(benzoyloxy)methyl]-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-3-nonyl-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-4-Amino-6-[(benzoyloxy)methyl]-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-3-octyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-6-[(benzoyloxy)methyl]-9-hydroxy-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-3-octyl-2,4(1H,3H)-pyrimidinedione