Synonyms: 1,3-Cyclobutanedicarboxylicacid, 2,4-bis(4-hydroxyphenyl)-, bis[(hexahydro-1H-pyrrolizin-1-yl)methyl]ester, [1a(1R*,7aR*),2a,3b(1R*,7aR*),4b]-(+)-; 1,3-Cyclobutanedicarboxylic acid,2,4-bis(4-hydroxyphenyl)-, bis[[(1S,7aS)-hexahydro-1H-pyrrolizin-1-yl]methyl]ester, (1a,2a,3b,4b)-(+)- (9CI); Thesine (6CI,8CI);Thesin