- ARYL, HETEROARYL, AND HETEROCYCLIC COMPOUNDS FOR TREATMENT OF MEDICAL DISORDERS
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Compounds, methods of use, and processes for making inhibitors of complement Factor D comprising Formula I, or a pharmaceutically acceptable salt or composition thereof wherein R12 or R13 on the A group is an aryl, heteroaryl or heterocycle (R32) are provided. The inhibitors of Factor D described herein reduce the excessive activation of complement.
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Paragraph 1409
(2017/03/14)
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- Process development for scale-up of a novel 3,5-substituted thiazolidine-2,4-dione compound as a potent inhibitor for estrogen-related receptor 1
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The development of a reproducible process for multihundred gram production of (Z)-5-((1-(4-chloro-2-(trifluoromethyl)benzyl)-1H-indazol-5-yl)methylene)-3- ((3R,4R)-3-fluoro-1-methylpiperidin-4-yl)thiazolidine-2,4-dione (26), a potent and selective inhibitor of estrogen-related receptor 1 (ERR1), is described. This multihundred gram synthesis was achieved via magnesium perchlorate- catalyzed regioselective epoxide ring-opening of tert-butyl 7-oxa-3- azabicyclo[4.1.0]heptane-3-carboxylate (9) with thiazolidine-2,4-dione (6, TZD) to form a diastereomeric mixture tert-butyl 4-(2,4-dioxothiazolidin-3-yl)-3- hydroxypiperidine-1-carboxylate (17), of which the 3-hydroxyl group was functionally transformed to 3-fluoro derivative 19 after treatment with Deoxo-Fluor. Chiral separation of 19 provided the desired diastereomer (3R,4R)-21 that was converted to the secondary amine 23 TFA salt. Reductive amination of 23 produced the key intermediate N-methyl 24. Knoevenagel condensation of 24 with 1-(4-chloro-2-(trifluoromethyl)benzyl)-1H-indazole-5- carbaldehyde (5) produced the final product 26 in 10% overall yield (99.7% HPLC area% with ≥99.5% de) after a convergent eight synthetic steps with the only column purification being the chiral HPLC separation of 3R,4R-21 from 3S,4S-22.
- Li, Xun,Russell, Ronald K.,Spink, Jan,Ballentine, Scott,Teleha, Christopher,Branum, Shawn,Wells, Kenneth,Beauchamp, Derek,Patch, Raymond,Huang, Hui,Player, Mark,Murray, William
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p. 321 - 330
(2014/03/21)
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- BI- AND TRICYCLIC INDAZOLE-SUBSTITUTED 1,4-DIHYDROPYRIDINE DERIVATIVES AND USES THEREOF
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This invention relates to novel bi- and tricyclic indazole-substituted 1,4-dihydropyridine derivatives having protein tyrosine kinase inhibitory activity, to a process for the manufacture thereof and to the use thereof for the treatment of c-Met-mediated
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Page/Page column 62
(2010/09/17)
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- ANNELLATED 4- (INDAZOLYL) -1,4-DIHYDROPYRIDINE DERIVATIVES AND METHODS OF USE THEREOF
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This invention relates to novel annellated 4-(indazolyl)-l,4-dihydropyridine derivatives having protein tyrosine kinase inhibitory activity, to a process for the manufacture thereof and to the use thereof for the treatment of c-Met-mediated diseases or c-
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Page/Page column 50
(2010/01/07)
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