摘要:
In an illustrative embodiment, the present invention describes the synthesis of the following compound and similar compounds, in high stereochemical purity by a novel stereoselective alkylation process:
摘要:
In an illustrative embodiment, the present invention describes the synthesis of the following compound and similar compounds, in high stereochemical purity by a novel stereoselective alkylation process:
摘要:
In an illustrative embodiment, the present invention describes the synthesis of the following compound and similar compounds, in high stereochemical purity by a novel stereoselective alkylation process:
摘要:
In an illustrative embodiment, the present invention describes the synthesis of the following compound and similar compounds, in high stereochemical purity by a novel stereoselective alkylation process:
摘要:
In one embodiment, the present invention discloses a process to directly prepare an unequal ratio of rotamers of an acid salt from a basic compound, by creative choice of a solvent medium. The process is particularly useful in preparing specific rotamers of pharmaceutically useful salts in desired preponderance.
摘要:
In one embodiment, the present invention discloses a process to directly prepare an unequal ratio of rotamers of an acid salt from a basic compound, by creative choice of a solvent medium. The process is particularly useful in preparing specific rotamers of pharmaceutically useful salts in desired preponderance.
摘要:
In one embodiment, the present invention discloses a process to directly prepare an unequal ratio of rotamers of an acid salt from a basic compound, by creative choice of a solvent medium. The process is particularly useful in preparing specific rotamers of pharmaceutically useful salts in desired preponderance.
摘要:
In one embodiment, the present invention describes the synthesis of 4-(piperidyl)(2-pyridyl)methanone-(E)-O-methyloxime dihydrochloride, monohydrochloride and free base, and similar compounds, in high stereochemical purity.
摘要:
The present invention discloses a novel process to prepare ketone amides, which are useful intermediates for the preparation of antagonists of CCR5 receptor and therefore useful for the treatment of HIV virus infected mammals. It specifically discloses a novel process to synthesize 1-(2,4-dimethylpyrimidine-5-carbonyl)-4-piperidone, 1-[(2,4-dimethyl-3-pyridinyl)carbonyl]-4-piperidone and related compounds. A salient feature of the invention is the use of a three-phase reaction medium with an organic phase and a buffer salt slurry.
摘要:
The present invention discloses a novel process to prepare ketone amides, which are useful intermediates for the preparation of antagonists of CCR5 receptor and therefore useful for the treatment of HIV virus infected mammals. It specifically discloses a novel process to synthesize 1-(2,4-dimethylpyrimidine-5-carbonyl)-4-piperidone, 1-[(2,4-dimethyl-3-pyridinyl)carbonyl]-4-piperidone and related compounds. A salient feature of the invention is the use of a three-phase reaction medium with an organic phase and a buffer salt slurry.