p. 1734 - 1737
(2007/10/03)(4S)-3-<(3S)-N,N'-bis(t-butoxycarbonyl)hexahydropyridazine-3-carboxy>-4-phenylmethyl-2-oxazolidinone
(3S)-N,N'-bis-(t-butoxycarbonyl)hexahydropyridazine-3-carboxylic acid
(S)-4-benzyl-3-(5-bromopentanoyl)oxazolidine-2-one
tert-butyl (S)-1-(N-methoxy-N-methylcarbamoyl)-2-methylpropylcarbamate
5-bromovaleroyl chloride