| abstract |
2-Amino-4,5-methylene-adipic acid cpds. of formula (I) and their salts are new, where R1 = H, alkyl, cycloalkyl, aralkyl, araloxyalkyl, arylthioalkyl, COR2, COOR3 or =CR4R5; R2-R5 = H, alkyl, cycloalkyl, aryl or aralkyl; X and Y = OH, alkoxy, alkylthio, NH2 or OCH(R7)OCOR6; R6 and R7 = H, alkyl, cycloalkyl, aryl or aralkyl; R1-R7 are opt. substd. by OH, halogen, alkyl, haloalkyl, CN, alkoxy, alkylthio, sulphinyl (sic), sulphonyl (sic), sulphinylalkyl (sic), sulphonylalkyl (sic), NH2, acyl, acyloxy, alkoxycarbonyl and/or carbamoyl. Specifically claimed are 56 cpds. (I), including (2R,4S,5S)-2-amino-4,5 -methyleneadipic acid (Ia); (2R,4R,5R)-2-amino-4,5 -methyleneadipic acid (Ib). |