对硝基苯磺酰氯

(2R,3S)-3-N-((S)-tetrahydrofuran-3-yloxycarbonylamino)-2-hydroxy-1-N-(isobutyl)amino-4-phenylbutane

2R-(t-叔丁氧羰基)氨基-1,4-二氯-3S-羟基丁烷

(S)-3-羟基四氢呋喃

N,N'-羰基二咪唑