Spirosol-5-en-3-ol, 28-[3-(4-ethylphenyl)-2-propyn-1-yl]-, (3β,22β,25R)-

Spirosol-5-en-3-ol, 28-[3-(4-methylphenyl)-2-propyn-1-yl]-, (3β,22β,25R)-

Spirosol-5-en-3-ol, 28-(3-phenyl-2-propyn-1-yl)-, (3β,22β,25R)-

Spirosol-5-en-3-ol, 28-[3-(trimethylsilyl)-2-propyn-1-yl]-, (3β,22α,25R)-

2-Butynoic acid, 4-[(3β,22α,25R)-3-hydroxyspirosol-5-en-28-yl]-, methyl ester

Spirosol-5-en-3-ol, 28-[3-(2-pyridinyl)-2-propyn-1-yl]-, (3β,22α,25R)-

Spirosol-5-en-3-ol, 28-[3-(4-fluorophenyl)-2-propyn-1-yl]-, (3β,22α,25R)-

Spirosol-5-en-3-ol, 28-[3-(4-methoxyphenyl)-2-propyn-1-yl]-, (3β,22α,25R)-

Spirosol-5-en-3-ol, 28-[3-(4-ethylphenyl)-2-propyn-1-yl]-, (3β,22α,25R)-

Spirosol-5-en-3-ol, 28-[3-(4-methylphenyl)-2-propyn-1-yl]-, (3β,22α,25R)-

Spirosol-5-en-3-ol, 28-(3-phenyl-2-propyn-1-yl)-, (3β,22α,25R)-

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

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

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

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

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

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

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

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

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