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Fmoc-p-carboxy-phe(otbu)-oh

Boc-l-mephe(4-cl)-oh

Cyclo(-gly-his)

Aloc-d-phe-oh dcha

Fmoc-hocys(acm)-oh

Z-orn(boc)-oh dcha

6-(Iodoacetamido)caproic acid n-*hydroxysuccinimide