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A	B	C	D	E	F
G	H	I	J	K	L
M	N	O	P	Q	R
S	T	U	V	W	X
Y	Z

Fmoc-D-Pen(Acm)-OH

Fmoc-Pen(Acm)-OH

Cbz-Orn(Cbz)-OH

Cbz-Orn(Boc)-OH

Boc-Orn(Cbz)-OH