5-Methyl-1-[(2R,3R,3aR,7R,7aS)-octahydro-7-hydroxy-3-methoxy-4-(2,2,2-trifluoroacetyl)furo[3,2-b]pyridin-2-yl]-2,4(1H,3H)-pyrimidinedione

3-[(4-Methoxyphenyl)methyl]-5-methyl-1-[(2R,3R,3aR,7R,7aS)-octahydro-7-hydroxy-3-methoxy-4-(2,2,2-trifluoroacetyl)furo[3,2-b]pyridin-2-yl]-2,4(1H,3H)-pyrimidinedione

3-[(4-Methoxyphenyl)methyl]-5-methyl-1-[(2R,3R,3aR,7R,7aS)-octahydro-3-methoxy-7-(2-naphthalenylmethoxy)furo[3,2-b]pyridin-2-yl]-2,4(1H,3H)-pyrimidinedione

2-Propen-1-yl (2R,3R,3aS,7R,7aS)-2-[3,4-dihydro-3-[(4-methoxyphenyl)methyl]-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl]hexahydro-3-methoxy-7-(2-naphthalenylmethoxy)furo[3,2-b]pyridine-4(2H)-carboxylate

3-[(4-Methoxyphenyl)methyl]-5-methyl-1-[(2R,3R,3aS,7R,7aS)-octahydro-3-hydroxy-7-(2-naphthalenylmethoxy)-4-(phenylmethyl)furo[3,2-b]pyridin-2-yl]-2,4(1H,3H)-pyrimidinedione

(2R,3R,3aR,7R,7aS)-2-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)octahydro-3-methoxy-4-(2,2,2-trifluoroacetyl)furo[3,2-b]pyridin-7-yl 4-oxopentanoate

3-[(4-Methoxyphenyl)methyl]-5-methyl-1-[(2R,3R,3aR,7R,7aS)-octahydro-3-methoxy-7-(2-naphthalenylmethoxy)-4-(2,2,2-trifluoroacetyl)furo[3,2-b]pyridin-2-yl]-2,4(1H,3H)-pyrimidinedione

3-[(4-Methoxyphenyl)methyl]-5-methyl-1-[(2R,3R,3aR,7R,7aS)-octahydro-3-methoxy-7-(2-naphthalenylmethoxy)-4-(phenylmethyl)furo[3,2-b]pyridin-2-yl]-2,4(1H,3H)-pyrimidinedione

1-[(2R,3R,3aR,7R,7aS)-3-(Acetyloxy)octahydro-7-(2-naphthalenylmethoxy)-4-(phenylmethyl)furo[3,2-b]pyridin-2-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(2R,3R,3aR,7R,7aS)-2-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)octahydro-3-methoxyfuro[3,2-b]pyridin-7-yl 4-oxopentanoate