Patent ID: 11944690
Assignee: BAYER AKTIENGESELLSCHAFT
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 12:
13. The process according to claim 11, wherein the DO3A-derived tetra-chelate of formula (I) is a Gd4-DO3A-derived tetra-chelate having a formula (I-a):, , or a stereoisomer, a tautomer or a salt thereof, or a mixture of same,
wherein the Gd4-DO3A-derived tetra-chelate of formula (I-a) is dissolved in sufficient amount to produce a liquid pharmaceutical formulation having a concentration of the Gd4-DO3A-derived tetra-chelate of formula (I-a) in the range of 1 mmol Gd3+/L to 1000 mmol Gd3+/L (inclusive).