摘要:
The present invention relates to a novel 1β-methylcarbapenem derivative, a process for the preparation thereof and a pharmaceutical composition comprising the 1β-methylcarbapenem derivative or a pharmaceutically acceptable salt thereof as an active antibacterial ingredient.
摘要:
This invention relates to an improved method for stereoselectively preparing 2¢¥-deoxy-2¢¥,2¢¥-difluorocytidine of formula (I), which comprises the steps of reacting a 1-halo ribofuranose compound of formula (III) with a nucleobase of formula (IV) in a solvent to obtain a nucleoside of formula (II) with removing the silyl halide of formula (V) produced during the reaction; and deprotecting the nucleoside of formula (II) to obtain 2¢¥-deoxy-2¢¥,2¢¥-difluorocytidine of formula (I).
摘要:
The mutual salt of raloxifene and bisphosphonic acid exhibits unexpectedly synergistic effects of two components to enhance bone mineral density (BMD), control blood-calcium density, and lower the serum cholesterol level.
摘要:
1-α-halo-2,2-difluoro-2-deoxy-D-ribofuranose derivative of formula (I) having the 3-hydroxy group protected with a biphenylcarbonyl group is a solid which can be easily purified by a simple procedure such as recrystallization, and therefore, it can be advantageously used as an intermediate in the preparation of gemcitabine in a large scale. Further, the 1-α-halo-2,2-difluoro-2-deoxy-D-ribofuranose derivative of formula (I) can be prepared with high stereoselectivity using the compound of formula (V) as an intermediate.
摘要:
The bioavailability of an anticancer agent is enhanced when the anticancer agent is administered together with a pharmaceutical composition comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof.