- Carbene Transfer and Carbene Insertion Reactions Catalyzed by a Mixed-Ligand Copper(I) Complex
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The catalytic activity of the mixed-ligand copper(I) complex [Cu(PPh3)2(κ2-O,O"-lact)] (1) {lact = l-(+)-lactate} has been investigated in carbene transfer and carbene insertion reactions. Complex 1 catalytically promoted the diastereoselective cyclopropanation of olefins in the presence of ethyl diazoacetate (EDA), under mild conditions, and with a low catalyst loading (1 mol-%). In the case of internal alkenes, a trans/cis ratio of up to 93:7 was reached. Moreover, compound 1 easily promoted the insertion of the carbene fragment deriving from the decomposition of ethyl diazoacetate into O–H (alcohols and phenols) and N–H (amine) bonds, with formation of the corresponding ethyl 2-alkoxyacetate, ethyl 2-phenoxyacetate, and ethyl 2-aminoacetate derivatives in good to high yields.
- Brenna, Stefano,Ardizzoia, G. Attilio
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p. 3336 - 3342
(2018/07/13)
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- BIPHENYL DERIVATIVES AS MODULATORS OF THE HISTAMINE-H3 RECEPTOR USEFUL FOR THE TREATMENT OF DISORDERS RELATED THERETO
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Biphenyl derivatives of Formula (Ia) and pharmaceutical compositions thereof that modulate the activity of the H3 histamine receptor. (Ia) Compounds of the present invention and pharmaceutical compositions thereof are directed to methods useful in the treatment of histamine H3-associated disorders, such as cognitive disorders, epilepsy, brain trauma, depression, obesity, disorders of sleep and wakefulness, such as narcolepsy, shift-work syndrome, drowsiness as a side effect from a medication, maintenance of vigilance to aid in completion of tasks and the like, cataplexy, hypersomnia, somnolence syndrome, jet lag, sleep apnea and the like, attention deficit hyperactivity disorder (ADHD), schizophrenia, allergies, allergic responses in the upper airway, allergic rhinitis, nasal congestion, dementia, Alzheimer's disease, pain and the like.
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Page/Page column 65-66
(2009/06/27)
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- Non-nucleoside reverse transcriptase inhibitors
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The present invention provides for compounds useful for treating an HIV-1 infection, or preventing an HIV-1 infection, or treating AIDS or ARC. The compounds of the invention are of formula I wherein R1-R4 and Ar are as herein defined. Also disclosed in t
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Page/Page column 23
(2010/11/26)
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- Novel 8-substituted dipyridodiazepinone inhibitors with a broad-spectrum of activity against HIV-1 strains resistant to non-nucleoside reverse transcriptase inhibitors
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A series of novel 8-substituted dipyridodiazepinone-based inhibitors were investigated for their antiviral activity against wild type human immunodeficiency virus (HIV-1) and the clinically prevalent K103N/Y181C mutant virus. Our efforts have resulted in a series of benzoic acid analogues that are potent inhibitors of HIV-1 replication against a panel of HIV-1 strains resistant to non-nucleoside reverse transcriptase inhibitors (NNRTIs). Furthermore, the combination of good antiviral potency, a broad spectrum of activity, and an excellent pharmacokinetic profile provides strong justification for the further development of compound 7 as a potential treatment for wild type and NNRT1-resistant HIV-1 infection.
- O'Meara, Jeff A.,Yoakim, Christiane,Bonneau, Pierre R.,B?s, Michael,Cordingley, Michael G.,Déziel, Robert,Doyon, Louise,Duan, Jianmin,Garneau, Michel,Guse, Ingrid,Landry, Serge,Malenfant, Eric,Naud, Julie,Ogilvie, William W.,Thavonekham, Bounkham,Simoneau, Bruno
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p. 5580 - 5588
(2007/10/03)
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