E. Kasafirek et al., CYCLIC DIPEPTIDES WITH 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID, Collection of Czechoslovak Chemical Communications, 62(6), 1997, pp. 941-947
Cyclic dipeptides of the formula cyclo(-Acc-X-), where Acc = 1-aminocy
clopropane-1-carboxylic acid, X = Gly, Ala, Val, Leu, Phe or Tyr, were
synthesized. The prepared 2,5-piperazinediones showed no proliferativ
e or antiproliferative activity on normal human embryo cells as well a
s on HL60 leukemia cells. Results of trace memory assays in mice were
negative.