Process for the preparation of gadolinium complex of (4S)-4-(4-ethoxybenzyl)-3,6,9-tris(carboxylatomethyl)-3,6,9-triazaundecanedioic acid disodium (Gadoxetate disodium)
申请人:Biophore India Pharmaceuticals PVT. Ltd.
公开号:US11149041B2
公开(公告)日:2021-10-19
The present invention discloses a novel process for the preparation of gadolinium complex of (4S)-4-(4-Ethoxybenzyl)-3,6,9-tris(carboxylatomethyl)-3,6,9-triazaundecanedioic acid disodium of formula 1 and novel intermediates thereof.
本发明公开了一种制备式 1 的(4S)-4-(4-乙氧基苄基)-3,6,9-三(羧基甲基)-3,6,9-三氮杂十一烷二酸二钠的钆络合物及其新型中间体的新工艺。