Abstract:
PROBLEM TO BE SOLVED: To provide a method for preparing quinoline-substituted carbonate and carbamate compounds which are important intermediates in the synthesis of a 6-O-substituted macrolide antibiotic material. SOLUTION: The carbonate or carbamate derivative expressed by the formula: R 1 -CH=CHCH 2 OC(O)-X-R 2 (I) is obtained by coupling a haloquinoline with propargyl alcohol in the presence of a base and a palladium-based catalyst to form an alkynol, reducing it to make an alkenol and then reacting it with an acylation reagent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
The instant invention discloses a process for the synthesis of substituted indole cell proliferation inhibitors, comprising the reaction of 1-formyl indoline with clorosulfonic acid and thionyl chloride, followed by reaction with an aromatic amine.
Abstract:
In one aspect, the invention relates to a process for preparing 6-O-substituted erythromycin derivatives comprising reacting 2'-substituted and optionally 4"-substituted 9-oxime erythromycin derivatives with an alkylating agent in the presence of a palladium catalyst and phosphine. In another aspect, the invention relates to processes for preparing 6-O-substituted erythromycin ketolides using the palladium-catalyzed alkylation reaction.
Abstract:
The present invention relates to processes for preparing amine substituted benzofurans, and more particularly 4-(2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-yl)benzonitrile, and salts thereof. Compounds prepared by the processes of the invention have demonstrated activity as histamine-3 receptor ligands. Forumla (I) or a salt thereof, wherein A is heterocycle selected from pyrrolidinyl or piperidinyl, wherein he heterocycle is substituted with 0, 1, 2, 3 or 4 substituents selected from the group consisting of alkyl and fluoroalkyl; and R 1 is 4-cyanophenyl, aryl, or heteroaryl, wherein he phenyl of 4-cyanophenyl, the aryl, or the heteroaryl is substituted with 0, 1, 2, 3 or 4 substituents seleced from the group consisting of alkoxy, alkoxyalkyl, alkyl, alkylthio, alkylthioalkyl, cyano, haloalkoxy, halogen, and haloalkyl.
Abstract:
In one aspect, the invention relates to a process for preparing 6-O-substituted erythromycin derivatives comprising reacting 2'-substituted and optionally 4''-substituted 9-oxime erythromycin derivatives with an alkylating agent in the presence of a palladium catalyst and phosphine. In another aspect, the invention relates to processes for preparing 6-O-substituted erythromycin ketolides using the palladium-catalyzed alkylation reaction.
Abstract:
The compound (2S,3S,5S)-2-(2,6-dimethylphenoxyacetyl)amino-3-hydroxyl-5-[2S-(1-tetrahydro-pyrimid-2-only)-3-methylbutanoyl]amino-1,6-diphenylhexane, amorphous forms, and amorphous solid forms are claimed. Also claimed is the use of the compound in the manufacture of medicaments and medicaments containing the compound for the treatment of HIV infection and for inhibiting HIV protease. (62) Divided out of 338003
Abstract:
In the present invention, there is described a compound of the general formula I functioning a HIV protease inhibitor. Methods and compositions for inhibiting a HIV infection are disclosed, too.
Abstract:
A compound comprising a substituent of the formula (II) is disclosed as an HIV protease inhibitor. Intermediates for making such compounds and processes for making such intermediates are also disclosed.
Abstract:
In one aspect, the invention relates to a process for preparing 6-O- substituted erythromycin derivatives comprising reacting 2'-substituted and optionally 4"-substituted 9-oxime erythromycin derivatives with an alkylatin g agent in the presence of a palladium catalyst and phosphine. In another aspect, the invention relates to processes for preparing 6-O-substituted erythromycin ketolides using the palladium-catalyzed alkylation reaction.
Abstract:
A compound comprising a substituent of the formula (II) is disclosed as an HIV protease inhibitor. Intermediates for making such compounds and processes for making such intermediates are also disclosed.