5680-51-3Relevant academic research and scientific papers
Synthesis of Polyfunctional Diorganomagnesium and Diorganozinc Reagents through In Situ Trapping Halogen–Lithium Exchange of Highly Functionalized (Hetero)aryl Halides in Continuous Flow
Ketels, Marthe,Ganiek, Maximilian A.,Weidmann, Niels,Knochel, Paul
supporting information, p. 12770 - 12773 (2017/09/13)
We report a halogen–lithium exchange performed in the presence of various metal salts (ZnCl2, MgCl2?LiCl) on a broad range of sensitive bromo- or iodo(hetero)arenes using BuLi or PhLi as the exchange reagent and a commercially available continuous-flow setup. The resulting diarylmagnesium or diarylzinc species were trapped with various electrophiles, resulting in the formation of polyfunctional (hetero)arenes in high yields. This method enables the functionalization of (hetero)arenes containing highly sensitive groups such as an isothiocyanate, nitro, azide, or ester. A straightforward scale-up was possible without further optimization.
Pyran-2-ones and 5,6-dihydropyran-2-ones useful for treating hyperplasia and other diseases
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Page 58, (2010/02/05)
Certain 2H-pyran-2-ones are useful for treating benign prostatic hypertrophy or hyperplasia, prostatic cancer, alopecia, hirsutism, acne vulgaris and seborrhea.
PYRANONE COMPOUNDS USEFUL TO TREAT RETROVIRAL INFECTIONS
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, (2008/06/13)
The present invention relates to compounds of formulae (I) and (II) which are pyran-2-ones, 5,6-dihydro-pyran-2-ones, 4-hydroxy-benzopyran-2-ones, 4-hydroxy-cycloalkyl[b]pyran-2-ones, and derivatives thereof, useful for inhibiting a retrovirus in a mammalian cell infected with said retrovirus, wherein R 10 and R 20 taken together are formulae (III) and (IV). STR1
4-HYDROXY-BENZOPYRAN-2-ONES AND 4-HYDROXY-CYCLOALKYL[B]PYRAN-2-ONES USEFUL TO TREAT RETROVIRAL INFECTIONS
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, (2008/06/13)
The present invention relates to compounds of formula I which are 4-hydroxy-benzopyran-2-ones and 4-hydroxy-cycloalkyl[b]pyran-2-ones useful for inhibiting a retrovirus in a mammalian cell infected with said retrovirus. STR1 Wherein R 10 and R 20 taken together are: STR2
Structure-based design of nonpeptidic HIV protease inhibitors: The sulfonamide-substituted cyelooctylpyranones
Skulnick, Harvey I.,Johnson, Paul D.,Aristoff, Paul A.,Morris, Jeanette K.,Lovasz, Kristine D.,Howe, W. Jeffrey,Watenpaugh, Keith D.,Janakiraman, Musiri N.,Anderson, David J.,Reischer, Robert J.,Schwartz, Theresa M.,Banitt, Lee S.,Tomich, Paul K.,Lynn, Janet C.,Horng, Miao-Miao,Chong, Kong-Teck,Hinshaw, Roger R.,Dolak, Lester A.,Seest, Eric P.,Schwende, Francis J.,Rush, Bob D.,Howard, Gina M.,Toth, Lisa N.,Wilkinson, Karen R.,Kakuk, Thomas J.,Johnson, Carol W.,Cole, Serena L.,Zaya, Renee M.,Zipp, Gail L.,Possert, Peggy L.,Dalga, Robert J.,Zhong, Wei-Zhu,Williams, Marta G.,Romines, Karen R.
, p. 1149 - 1164 (2007/10/03)
Recently, cyclooctylpyranone derivatives with m-carboxamide substituents (e.g. 2c) were identified as potent, nonpeptidic HIV protease inhibitors, but these compounds lacked significant antiviral activity in cell culture. Substitution of a sulfonamide group at the meta position, however, produces compounds with excellent HIV protease binding affinity and antiviral activity. Guided by an iterative structure-based drug design process, we have prepared and evaluated a number of these derivatives, which are readily available via a seven-step synthesis. A few of the most potent compounds were further evaluated for such characteristics as pharmacokinetics and toxicity in rats and dogs. From this work, the p-cyanophenyl sulfonamide derivative 35k emerged as a promising inhibitor, was selected for further development, and entered phase I clinical trials.
Structure-Based Design of Novel HIV Protease Inhibitors: Carboxamide-Containing 4-Hydroxycoumarins and 4-Hydroxy-2-pyrones as Potent Nonpeptidic Inhibitors
Thaisrivongs, Suvit,Watenpaugh, Keith D.,Howe, W. Jeffrey,Tomich, Paul K.,Dolak, Lester A.,et al.
, p. 3624 - 3637 (2007/10/03)
The low oral bioavailability and rapid biliary excretion of peptide-derived HIV protease inhibitors have limited their utility as potential therapeutic agents.Our broad screening program to discover nonpeptidic HIV protease inhibitors had previously identified compound II (phenprocoumon, Ki = 1 μM) as a lead template.Crystal structures of HIV protease complexes containing the peptide-derived inhibitor I (1-(naphthoxyacetyl)-L-histidyl-5(S)-amino-6-cyclohexyl-3(R),4(R)-dihydroxy-2(R)-isopropylhexanoyl-L-isoleucine N-(2-pyridylmethyl)amide) and nonpeptidic inhibitors, such as phenprocoumon (compound II), provided a rational basis for the structure-based design of more active analogues.This investigation reports on the important finding of a carboxamide functionality appropriately added to the 4-hydroxycoumarin and the 4-hydroxy-2-pyrone templates which resulted in new promising series of nonpeptidic HIV protease inhibitors with improved enzyme-binding affinity.The most active diastereomer of the carboxamide-containing compound XXIV inhibited HIV-1 protease with a Ki value of 0.0014 μM.This research provides a new design direction for the discovery of more potent HIV protease inhibitors as potential therapeutic agents for the treatment of HIV infection.
