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triphenylchloromethane 2-chloro-3',4'-dihydroxylhypnone bromoacetyl bromide tertiary butyl boromoacetate -bromo tertiary butyl isobutyrate -bromoethyl isobutyrate 3-morpholine-1-propylamine P-tertiary butyl benzyl cyanide P-cyanobenzyl alcohol 3-chloropropylamine hydrochloride 2-chloroethylamine hydrochloride