CYCLO(-PRO-VAL)

CYCLO(L-VAL-L-PRO-)

CYCLO(L-PRO-L-VAL-)

(3S,8AWEI )-3WEI -ISOPROPYLOCTAHYDROPYRROLO[1,2-A]PYRAZINE-1,4-DIONE

(3S,8AS)-OCTAHYDRO-3-(1-METHYLETHYL)PYRROLO[1,2-A]PYRAZINE-1,4-DIONE

(3S,8AS)-3WEI -ISOPROPYL-6,7,8,8A-TETRAHYDROPYRROLO[1,2-A]PYRAZINE-1,4(2H,3H)-DIONE

(3S,8AS)-3-ISOPROPYL-6,7,8,8AWEI -TETRAHYDROPYRROLO[1,2-A]PYRAZINE-1,4(2H,3H)-DIONE

Pyrrolo[1,2-a]pyrazine-1,4-dione,hexahydro-3-(1-methylethyl)-, (3S,8aS)-

Pyrrolo[1,2-a]pyrazine-1,4-dione,hexahydro-3-(1-methylethyl)-, (3S-trans)-

Pyrrolo[1,2-a]pyrazine-1,4-dione,hexahydro-3-isopropyl-, (S,S)- (8CI)

(-)-(6S,9S)-Cyclo(prolylvalyl)

Cyclo(L-Pro-L-Val)

Cyclo(L-Val-L-Pro)

Cyclo(L-prolyl-L-valine)

Cyclo(L-prolyl-L-valyl)

L-Valyl-L-prolyl lactam

Maculosin 5

cyclo(Pro-Val)

Cyclo(-Pro-Val)