The present disclosure provides acetate salts of buprenorphine, and its anhydrates, solvates, hydrates, and crystalline forms thereof, where the acetate salts of buprenorphine are essentially free of impurities. The disclosure further provides method of preparing the acetate salts, buprenorphine free base prepared from the acetate salts, other salts prepared from the free base, and pharmaceutical compositions thereof essentially free of impurities.
本公开提供了丁丙诺啡的
乙酸盐及其无
水物、溶液、
水合物和结晶形式,其中丁丙诺啡的
乙酸盐基本上不含杂质。本公开进一步提供了制备
乙酸盐、由
乙酸盐制备的丁丙诺啡游离基、由游离基制备的其他盐及其药物组合物的方法,这些方法基本上不含杂质。