6-(Cyclopentyl)pyrazine-2-boronic acid pinacol ester

(9H-fluoren-9-yl)methyl 4-({2-methyl-5-sulfanyl-3-[2-(trimethylsilyl)ethynyl]phenyl}methyl)piperazine-1-carboxylate

tert-butyl 2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}(methyl)amino)-4-methyl-5-(piperazin-1-yl)phenyl]acetate

tert-butyl 4-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-5-[2-(trimethylsilyl)ethynyl]phenyl}piperazine-1-carboxylate

(9H-fluoren-9-yl)methyl N-{[3-(piperazin-1-yl)-5-[2-(trimethylsilyl)ethynyl]phenyl]methyl}carbamate

tert-butyl 4-{5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3-[(fluorosulfonyl)oxy]-2-methylphenyl}piperazine-1-carboxylate

tert-butyl 4-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-[(fluorosulfonyl)oxy]-2-methylphenyl]methyl}piperazine-1-carboxylate

tert-butyl 4-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(fluorosulfonyl)oxy]-2-methylphenyl]methyl}piperazine-1-carboxylate

(9H-fluoren-9-yl)methyl 4-[(3-{[(tert-butoxy)carbonyl]amino}-5-[(fluorosulfonyl)oxy]-2-methylphenyl)methyl]piperazine-1-carboxylate

2,2-Difluoro-1-(3-hydroxy-4-nitrophenyl)cyclopropane-1-carboxylic acid

Methyl 1-(hydroxymethyl)-2-azabicyclo[2.1.1]hexane-4-carboxylate