Abstract:
The present invention relates to an improved process for the preparation of pure hydrate forms of Risedronate monosodium, which is used for the treatment of osteoporosis.
Abstract:
The present invention relates to an improved process for the preparation of (-) Trans-N-methyl paroxetine of formula (I), which is an intermediate in the synthesis of Paroxetine of formula (II). (-) Trans-N-methyl paroxetine is prepared by reacting (-) trans sulphonate compound of formula (III) with 3,4-methylenedioxyphenol ("sesamol") of formula (IV) in the presence of base potassium carbonate using Methyl isobutyl ketone (MIBK) as solvent.
Abstract:
The present invention is to relate an improved process using anisole as solvent for the preparation of compound of formula (I) and its pharmaceutically acceptable salts thereof. wherein R represents-NR 1 R 2 , or formula (II), a group n = 1,2,3,4 and 5, where R 1 and R2 may be same or different and independently represents hydrogen, or C 1-6 alkyl;
Abstract translation:本发明涉及使用苯甲醚作为制备式(I)化合物及其药学上可接受的盐的溶剂的改进方法。 其中R表示-NR 1 R 2 R 2或式(II),n = 1,2,3,4和5组,其中R 1, / SUB和R 2可以相同或不同,并且独立地表示氢或C 1-6烷基;
Abstract:
The present invention relates to an improved process for the preparation of pure hydrate forms of Risedronate monosodium, which is used for the treatment of osteoporosis.
Abstract:
The present invention relates to an improved process for the preparation of cephalosporin antibiotics of formula (I). The present invention also provides new salts of compound of formula (II) and a process for the preparation of these new salts, where n = 0.5 to 2. The present invention also provides a process for the preparation of compound of formula (I) using the new salts of formula (II).
Abstract:
The present invention relates to an improved process for the preparation of (-) Trans-N-methyl paroxetine of formula (I), which is an intermediate in the synthesis of Paroxetine of formula (II). (-) Trans-N-methyl paroxetine is prepared by reacting (-) trans sulphonate compound of formula (III) with 3,4-methylenedioxyphenol ("sesamol") of formula (IV) in the presence of base potassium carbonate using Methyl isobutyl ketone (MIBK) as solvent.
Abstract:
The present invention relates to an improved process for the preparation of cephalosporin antibiotics of formula (I). The present invention also provides new salts of compound of formula (II) and a process for the preparation of these new salts, where n = 0.5 to 2. The present invention also provides a process for the preparation of compound of formula (I) using the new salts of formula (II).
Abstract:
The present invention relates to an improved process for the preparation of cephalosporin antibiotics of formula (I). The present invention also provides new salts of compound of formula (II) and a process for the preparation of these new salts, where n = 0.5 to 2. The present invention also provides a process for the preparation of compound of formula (I) using the new salts of formula (II).