1-nitro-octan-3-one ethylene ketal

(Z)-(8R,9R,11R)-8-(tert-Butyl-diphenyl-silanyloxy)-12,12-bis-ethylsulfanyl-9,11-dihydroxy-dodec-5-enoic acid methyl ester

methyl 8R-tert-butyldiphenylsilyloxy-11R-hydroxy-13-nitro-15-oxo-9S,12S-oxyeicosa-5Z-enoate

(Z)-(R)-8-(tert-Butyl-diphenyl-silanyloxy)-8-{(2S,4R)-4-hydroxy-5-[1-nitro-2-(2-pentyl-[1,3]dioxolan-2-yl)-ethyl]-tetrahydro-furan-2-yl}-oct-5-enoic acid methyl ester

(Z)-(R)-8-(tert-Butyl-diphenyl-silanyloxy)-8-{(4S,6R)-6-[1-hydroxy-2-nitro-3-(2-pentyl-[1,3]dioxolan-2-yl)-propyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-oct-5-enoic acid methyl ester