摘要:
A compound of formula (6) or an acid addition salt thereof in which G is (i) a leaving group A selected from a halo group and a sulfonyloxy group, or (ii) a group of the formula (20) is useful in processes of making paliperidone and related compounds.
摘要:
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts and derivatives thereof: using a compound of formula (5b) is provided.
摘要:
A 9-hydroxy or 9-acyloxy group can be added to a pyridopyrimidinone ring structure by a process comprising acylating a compound of formula (5) under Vilsmeier-Haack or Friedel-Crafts conditions to form a compound (6); and transforming with a peroxo-compound to obtain the compound (I). R represents hydrogen or a C1-C20 acyl group. The process is useful in the synthesis of paliperidone and derivatives.
摘要:
The invention relates to a process which comprises reacting, in a solvent, the compound of formula (2) with a compound of formula (3) or a salt thereof in the presence of a 1,3,5-triazine coupling agent, to form imatinib of formula (1) or a salt thereof, and to the use of 1, 3, 5-triazine compounds in making imatinib.
摘要:
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts thereof: using a compound of formula (11) is provided.
摘要:
The invention relates to a compound of formula (7.2) or an acid addition salt thereof in an isolated state having a purity of greater than 50%, the use thereof in a reference standard for monitoring the presence thereof in a paliperidone sample, and the use thereof in a paliperidone purification process.
摘要:
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts and derivatives thereof: using a compound of formula (5b) is provided.
摘要:
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts thereof: (1) using a compound of formula (11) is provided.