112981-50-7Relevant academic research and scientific papers
Regio- and stereoselective 1,2-dihydropyridine alkylation/addition sequence for the synthesis of piperidines with quaternary centers
Duttwyler, Simon,Chen, Shuming,Lu, Colin,Mercado, Brandon Q.,Bergman, Robert G.,Ellman, Jonathan A.
, p. 3877 - 3880 (2014)
The first example of C alkylation of 1,2-dihydropyridines with alkyl triflates and Michael acceptors was developed to introduce quaternary carbon centers with high regio- and diastereoselectivity. Hydride or carbon nucleophile addition to the resultant iminium ion also proceeded with high diastereoselectivity. Carbon nucleophile addition results in an unprecedented level of substitution to provide piperidine rings with adjacent tetrasubstituted carbon atoms. Pipe up: Alkylation of readily prepared 1,2-dihydropyridines with alkyl triflates and Michael acceptors introduces quaternary carbon centers with high regio- and diastereoselectivity. Hydride or carbon nucleophile addition to the resultant iminium ion also proceeds with high diastereoselectivity. For carbon nucleophile addition, an unprecedented level of substitution is achieved to provide piperidine rings with contiguous tetrasubstituted carbon atoms.
HERBICIDAL COMPOUNDS
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Page/Page column 46, (2020/08/22)
Compounds of the formula (I) wherein the substituents are as defined in claim 1, useful as a pesticides, especially as herbicides.
RAPAMYCIN ANALOGS AND USES THEREOF
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Paragraph 00481-00482, (2020/01/08)
The present invention provides compounds, compositions thereof, and methods of using the same.
SUBSTITUTED OXOPYRIDINE DERIVATIVES
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Paragraph 0540-0542, (2018/05/24)
The invention relates to substituted oxopyridine derivatives and to processes for preparation thereof, and also to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases, especially of cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and oedemas, and also ophthalmic disorders.
COMPOUNDS AND METHODS FOR INHIBITING PRODUCTION OF TRIMETHYLAMINE
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Paragraph 0135; 0136; 0138; 0139, (2017/07/01)
The invention provides a method of inhibiting the conversion of choline or carnitine to trimethylamine (TMA) and lowering TMAO in an individual comprising administering to the individual a composition comprising a compound set forth in FORMULA (I): The in
SUBSTITUTED OXOPYRIDINE DERIVATIVES
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Paragraph 0459-0460, (2017/10/26)
The invention relates to substituted oxopyridine derivatives and to processes for preparation thereof, and also to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases, especially of cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and oedemas, and also ophthalmic disorders.
SUBSTITUTED OXOPYRIDINE DERIVATIVES
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Paragraph 0772-0773, (2017/11/07)
The invention relates to substituted oxopyridine derivatives and to processes for preparation thereof, and also to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases, especially of cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and oedemas, and also ophthalmic disorders.
SUBSTITUTED OXOPYRIDINE DERIVATIVES
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Paragraph 0552; 0553; 0744; 0745; 0746, (2017/10/27)
The invention relates to substituted oxopyridine derivatives and to processes for preparation thereof, and also to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases, especially of cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and oedemas, and also ophthalmic disorders.
SUBSTITUTED OXOPYRIDINE DERIVATIVES
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Paragraph 0724; 0725, (2016/10/11)
The invention relates to substituted oxopyridine derivatives and to processes for their preparation, and also to their use for preparing medicaments for the treatment and/or prophylaxis of diseases, in particular cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and oedemas, and also ophthalmic disorders.
Synthesis of Ethers via Reaction of Carbanions and Monoperoxyacetals
Kyasa, ShivaKumar,Meier, Rebecca N.,Pardini, Ruth A.,Truttmann, Tristan K.,Kuwata, Keith T.,Dussault, Patrick H.
, p. 12100 - 12114 (2016/01/09)
Although transfer of electrophilic alkoxyl ("RO+") from organic peroxides to organometallics offers a complement to traditional methods for etherification, application has been limited by constraints associated with peroxide reactivity and stability. We now demonstrate that readily prepared tetrahydropyranyl monoperoxyacetals react with sp3 and sp2 organolithium and organomagnesium reagents to furnish moderate to high yields of ethers. The method is successfully applied to the synthesis of alkyl, alkenyl, aryl, heteroaryl, and cyclopropyl ethers, mixed O,O-acetals, and S,S,O-orthoesters. In contrast to reactions of dialkyl and alkyl/silyl peroxides, the displacements of monoperoxyacetals provide no evidence for alkoxy radical intermediates. At the same time, the high yields observed for transfer of primary, secondary, or tertiary alkoxides, the latter involving attack on neopentyl oxygen, are inconsistent with an SN2 mechanism. Theoretical studies suggest a mechanism involving Lewis acid promoted insertion of organometallics into the O-O bond.
