imaging. This compound is commercially available but the extremely high cost seriously limits its wide utilization. Thus, we sought a convenient and inexpensive synthesis of DOTA-Tris-tBu ester that is readily adapted for use in any laboratory. The synthetic approach described here is straightforward and has an overall yield of 92%. Significantly, the product can be purified conveniently without using of
1-(Acetic acid)-4,7,10-
Tris( tert -butoxycarbonylmethyl )-1,4,7,10-tetraazacyclododecane(DOTA-
Tris- t Bu 酯或1)是
镧系离子的前体
螯合剂,可以用各种功能部分或大分子有效标记,以改善用于分子成像的造影剂的靶向特异性、细胞内递送、
生物相容性和药代动力学。该化合物市售可得,但极高的成本严重限制了其广泛应用。因此,我们寻求一种方便且廉价的 DOTA-
Tris- t合成方法。适合任何实验室使用的丁酯。这里描述的合成方法很简单,总产率为 92%。重要的是,无需使用费时费力的柱层析,即可方便地纯化产物。这种方法的其他优点,如操作方便、原料可用性和原子效率,使得以降低的成本大量制备 DOTA-
Tris- t Bu 酯非常有吸引力。