Stereoselective antitumor properties in the Lewis Lung carcinoma model using bis(morpholinomethyl) derivatives of tricyclic bis(dioxopiperazines)
摘要:
Geometric isomers of 2,11-bis(morpholinomethyl)tetrahydrodipyrazino[1,2-a:2',1'-c]pyraz ine-1, 3,10,12-(2H,4H,9H,11H)-tetrone (3 and 4) and the parent bisimides (1 and 2) were studied for their stereoselective antimetastatic activity in the Lewis Lung carcinoma model. The morpholinomethyl cis-syn-trans isomer 4 was more effective as an inhibitor of metastasis than the other three analogues. Using a postamputation protocol, the order of decreasing activity was cis morpholinomethyl analogue 4 greater than trans morpholinomethyl analogue 3 greater than parent cis imide 2 greater than parent trans imide 1. Increased activity observed for the morpholinomethyl derivatives may reflect differences in solubility and delivery (prodrug) or an intrinsic antitumor activity of the morpholinomethyl-N functionality.
Synthesis and antimetastatic properties of stereoisomeric tricyclic bis(dioxopiperazine) analogs in a B16 melanoma model
摘要:
The synthesis for trans and cis tricyclic bis(dioxopiperazine)s 5 and 6 from pyrazine-2,3-dicarboxamide (7) is described. Stereoselective antimetastatic activity differences for these analogues were observed following pretreatment of B16-F10 melanoma cells in vitro. Activities for these isomers were compared with selected intermediates, and the data are discussed in relation to previous results obtained with cis- and trans-cyclopropane analogues.
Synthesis of bis (morpholinomethyl) derivatives of tricyclic bis
申请人:Ohio State University
公开号:US05130426A1
公开(公告)日:1992-07-14
Bis(morpholinomethyl) derivatives of tricyclic bisdioxopyperzaines of the formula ##STR1## wherein R is H, ##STR2## R' is H, lower alkyl groups (straight or branched chain of 1 to 6 carbon atoms) and the processes for the syntheses thereof are provided.