Ethyl (3S)-3-[4-[[4-(bromomethyl)phenyl]methoxy]phenyl]hex-4-ynoate

ethyl (S)-3-(4-((4-(spiro[indene-1,4'-piperidin]-1'-ylmethyl)benzyl)oxy)phenyl)hex-4-ynoate

Ethyl (3S)-3-[4-[[4-(spiro[indane-1,4'-piperidine]-1'-ylmethyl)phenyl]methoxy]phenyl]hex-4-ynoate

(3S)-3-[4-({4-[(1-Methyl-1,2-dihydro-1'H-spiro[indole-3,4'-piperidin]-1'-yl)methyl]benzyl}oxy)phenyl]hex-4-ynoic acid