(R)-2-丙基哌啶

(5S,6Z,8E,10E,12R)-5,12-bis((tert-butyldimethylsilyl)oxy)icosa-6,8,10-trien-14-ynoic acid

11,11-diisopropoxy-undeca-5,8-cis,cis-dienoic acid methyl ester

methyl 5-oxo-4-(phenylselanyl)pentanoate