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(2007/10/02)[(2R,6R)-5-Oxo-2-thiophen-2-yl-6-(trityl-amino)-[1,4]thiazepan-4-yl]-acetic acid tert-butyl ester
[(2S,6R)-5-Oxo-2-thiophen-2-yl-6-(trityl-amino)-[1,4]thiazepan-4-yl]-acetic acid tert-butyl ester
[(R)-5-Oxo-2-thiophen-2-yl-6-(trityl-amino)-6,7-dihydro-5H-[1,4]thiazepin-4-yl]-acetic acid tert-butyl ester
(2R,6R)-2-Thiophen-2-yl-6-(trityl-amino)-[1,4]thiazepan-5-one
t-butyl α-[6(R)-amino-5-oxo-2(S)-(2-thienyl)perhydro-1,4-thiazepin-4-yl]acetate