摘要:
The present invention concerns production of a compound of the formula or a pharmaceutically acceptable salt thereof by a process which utilizes the cyclization of a compound of the formula: where Ar, Y, R1, Ry, R2, and m are as defined herein.
摘要:
The present invention relates to methods of making Gonadotropin Releasing Hormone (“GnRH”) (also known as Leutinizing Hormone Releasing Hormone) receptor antagonists.
摘要:
Methods of preparing compounds of formula I or pharmaceutically acceptable salts thereof are provided: wherein each of R1, R2, R3, R4, x, m, n, and Ar are as defined, and described in classes and subclasses herein, which are agonists or partial agonists of the 2C subtype of brain serotonin receptors. The compounds, and compositions containing the compounds, can be used to treat a variety of central nervous system disorders such as schizophrenia.
摘要:
This invention concerns a process for the preparation of benzofuran derivatives. In some aspects, these compounds are of formula I: wherein each of R1, R2, R3, and R4 is as defined herein.
摘要:
Processes for dialkylating indolinones, specifically indolin-2-ones are provided. The processes for dialkylating an indolin-2-one include performing the dialkylation in the presence of at least 2 equivalents of a first base, a second base containing at least 1 equivalent of lithium diisopropylamide, and an alkylating agent. Processes for preparing a compound of the structure are provided, wherein R1, R3, R4, R6, R7, R9, and R10 are as defined herein. In one embodiment, a process for preparing 5-(4′-fluoro-2′-oxospiro[cyclopropane-1,3′-indoline]-5′-yl)-1-methyl-1H-pyrrole-2-carbonitrile is provided.
摘要:
Processes are disclosed for preparing substituted aryl cycloalkanol derivatives, particularly chiral substituted aryl cycloalkanol derivatives of the general formula:
摘要:
Processes for preparing substituted oxindole-2-ones, and specifically the following, are described, wherein R1-R4, R6, and n are defined herein. The processes include reacting a first alkali metal hydroxide, a tetraalkyl ammonium salt, a benzonitrile, and R6X or XCH2(CH2)nX′, wherein R6 is C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic, or substituted heterocyclic, X and X′ are, independently, leaving groups, and n is 1 to 5; (ii) reacting the product of step (i) with a second alkali metal hydroxide at a temperature of at least about 60° C.; (iii) reacting the product of step (ii) with an alkali alkoxide at a temperature of at least about 140° C. to form an oxindol-2-one; (iv) brominating the oxindol-2-one; and (v) coupling the brominated oxindol-2-one with a coupling reagent.
摘要:
Disclosed is a one step method for preparing a 1,2,3-triazole carboxylic acid by treating an azide with a &bgr;-ketoester in the presence of a base.