Pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-3-(1H-indol-3-ylmethyl)-, (3S,8aS)-
Pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-3-(1H-indol-3-ylmethyl)-, (3S-trans)-
(3S,8aS)-Hexahydro-3-(1H-indol-3-ylmethyl)pyrrolo[1,2-a]pyrazine-1,4-dione
Brevianamide F
Cyclo-L-tryptophyl-L-proline
cyclo-L-Prolyl-L-tryptophanyl
L-Prolyl-L-tryptophan anhydride
Prolyltryptophanyldiketopiperazine
Cyclo(L-Pro-L-Trp)
Cyclo-L-Trp-L-Pro