Process for the production of DTPA-tetraesters of terminal carbo

Details Process for the production of DTPA-tetraesters of terminal carbo Process for the production of DTPA-tetraesters of terminal carbo

1996-04-18

1997-10-14

Conrad, Joseph

Drug, bio-affecting and body treating compositions

In vivo diagnosis or in vivo testing

Magnetic imaging agent

424 94, 514533, 514547, 514548, 560 38, 560 39, 560 40, 560169, C07C22906

Patent

active

056769261

ABSTRACT:
The invention relates to a process for the production of diethylenetriaminepentacarboxylic acid tetraesters of general formula I ##STR1## in which R.sup.1 and Z have different meanings.

REFERENCES:
Williams et al., J. Org. Chem., 58, 1151-1158 (1993).
C.F. Ward, Soc., 121: 1164 (1922).

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