(9S,11R)-8-Iodo-12-oxo-9,11-bis-triethylsilanyloxy-dodec-5-ynoic acid methyl ester

(9S,11R)-12,12-Bis-ethylsulfanyl-8-iodo-9,11-bis-triethylsilanyloxy-dodec-5-ynoic acid methyl ester

(R)-8-((3aR,5S,6aR)-2,2-Dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-8-trifluoromethanesulfonyloxy-oct-5-ynoic acid methyl ester