上游原料
1,4,7,10-tetraazacyclododecane; Cyclen2-Bromoacetic acid tert-butyl ester; tert-butyl 2-bromoacetate; tert-Butyl bromoacetatetetra-tert-butyl 2,2',2'',2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetate1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid; 1,4,7,10-Tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid; Dota acid; Tetraxetangadolinium(III) hydrogen 2,2',2'',2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetate(2R,3S,4R,5S)-2,3,4,5,6-pentahydroxyhexanalN-methyl-D-glucamine; (2R,3R,4R,5S)-6-(methylamino)-1,2,3,4,5-hexanepentol
