L-Tryptophan,L-valylglycyl-L-seryl-1-[carboxy[[N-[1-(5-oxo-L-prolyl)-L-prolyl]-L-tryptophyl]amino]methyl]-,cyclic (41®
L-Tryptophan,L-valylglycyl-L-seryl-1-[carboxy[(5-oxo-L-prolyl-L-prolyl-L-tryptophyl)amino]methyl]-,(41(R)1)-lactam ·
L-Tryptophan,L-valylglycyl-L-seryl-1-[carboxy[(5-oxo-L-prolyl-L-prolyl-L-tryptophyl)amino]methyl]-,(41(R)1)-lactam ·