The present invention discloses a process for dimethylation of active methylene groups. Specifically, the invention discloses aprocess for preparing3-amino-2,2- dimethylpropanamide. Compounds produced by the present dimethylation process such as 3-amino-2,2-dimethylpropanamide can be used as intermediates in the route of synthesis of therapeutic, prophylactic or diagnostic agent, for example aliskiren or cryptophycin. Particularly, the invention relates to embodiments further extending to processesfor preparing pharmaceutical dosage form comprising said therapeutic, prophylactic or diagnostic agents. More specifically, the invention relates to the use of compounds produced by the present dimethylation process for the manufacture of therapeutic, prophylactic or diagnostic agents or for the manufacture of pharmaceutical dosage forms comprising said therapeutic, prophylactic or diagnostic agents. The processes according to the present invention can be beneficially applied for the synthesis of various active pharmaceutical ingredients, such as aliskiren or crypthophycin.
本发明公开了一种活性甲基烷基羟基二甲基化的方法。具体地,该发明公开了制备3-
氨基-2,2-二甲基丙酰胺的方法。本甲基化过程产生的化合物,如3-
氨基-2,2-二甲基丙酰胺,可用作合成治疗、预防或诊断药物的中间体,例如阿利司鲁或隐花
链霉素。特别地,本发明涉及进一步扩展到制备包括所述治疗、预防或诊断药物的制药剂量形式的方法。更具体地,本发明涉及利用本甲基化过程产生的化合物制造治疗、预防或诊断药物,或者制造包括所述治疗、预防或诊断药物的制药剂量形式。根据本发明的方法可有益地应用于合成各种活性药物成分,如阿利司鲁或隐花
链霉素。