The specification relates to a process for preparation of an antifolate compound of formula 7, such as Pralatrexate. Also, disclosed are intermediates and processes for preparation of intermediates useful in the preparation of the antifolate compound. The substituents Y, Z, R, R1 and R2 are as described herein. The processes and intermediates can provide an alternate route to the synthesis of the antifolate compound. Further, the processes can help to avoid distillation or evaporation of high boiling point solvents, chromatographic purification and use of hazardous combination of solvents; and can also provide a product having high purity, all of which are desirable for synthesis on a large scale.
该规范涉及一种制备抗叶酸化合物的过程,该化合物的
化学式为7,如Pralatrexate。还披露了在制备抗叶酸化合物过程中有用的中间体和制备中间体的过程。取代基Y、Z、R、R1和R2如本文所述。这些过程和中间体可以提供合成抗叶酸化合物的另一种途径。此外,这些过程可以帮助避免高沸点溶剂的蒸馏或蒸发、色谱纯化和使用危险的溶剂组合;还可以提供高纯度的产品,这些对于大规模合成都是理想的。