- A predictive model for additions to: N -alkyl pyridiniums
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Disclosed in this communication is a thorough study on the dearomative addition of organomagnesium nucleophiles to N-alkyl pyridinium electrophiles. The regiochemical outcomes have observable and predictable trends associated with the substituent patterns on the pyridinium electrophile. Often, the substituent effects can be either additive, giving high selectivities, or ablative, giving competing outcomes. Additionally, the nature of the organometallic nucleophilic component was also investigated for its role in the regioselective outcome. The effects of either reactive component are important to both the overall reactivity and site of nucleophilic addition. The utility of these observed trends is demonstrated in a concise, dearomative synthesis of a tricyclic compound shown to have insecticidal activity. This journal is
- Knight, Brian J.,Tolchin, Zachary A.,Smith, Joel M.
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supporting information
p. 2693 - 2696
(2021/03/18)
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- ATP-REGULATED POTASSIUM CHANNEL OPENERS COMPRISING GUANIDINE AND USES THEREOF
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The present invention provides compounds comprising an ATP-regulated potassium (KATP) channel opener, and pharmaceutical compositions thereof. These compounds and compositions are useful for prevention, treatment, or management of pulmonary arterial or venous hypertension.
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Paragraph 0068-0069; 0081
(2021/03/13)
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- FUSED PYRIMIDINE COMPOUNDS AND PHARMACEUTICAL COMPOSITIONS THEREOF FOR THE TREATMENT OF FIBROTIC DISEASES
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The present invention discloses compounds according to Formula I: Wherein A, B, R1, R2, and Cy are as defined herein. The present invention relates to compounds inhibiting autotaxin (NPP2 or ENPP2), methods for their production, pharmaceutical compositions comprising the same, and methods of treatment using the same, for the prophylaxis and/or treatment of fibrotic diseases, proliferative diseases, inflammatory diseases, autoimmune diseases, respiratory diseases, cardiovascular diseases, neurodegenerative diseases, dermatological disorders, pain, and/or abnormal angiogenesis associated diseases by administering the compounds of the invention.
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Paragraph 0324-0325
(2021/02/25)
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- Photorelease of Pyridines Using a Metal-Free Photoremovable Protecting Group
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The photorelease of bioactive molecules has emerged as a valuable tool in biochemistry. Nevertheless, many important bioactive molecules, such as pyridine derivatives, cannot benefit from currently available organic photoremovable protecting groups (PPGs). We found that the inefficient photorelease of pyridines is attributed to intramolecular photoinduced electron transfer (PET) from PPGs to pyridinium ions. To alleviate PET, we rationally designed a strategy to drive the excited state of PPG from S1 to T1 with a heavy atom, and synthesized a new PPG by substitution of the H atom at the 3-position of 7-dietheylamino-coumarin-4-methyl (DEACM) with Br or I. This resulted in an improved photolytic efficiency of the pyridinium ion by hundreds-fold in aqueous solution. The PPG can be applied to various pyridine derivatives. The successful photorelease of a microtubule inhibitor, indibulin, in living cells was demonstrated for the potential application of this strategy in biochemical research.
- Dong, Zaizai,Fang, Xiaohong,Kou, Xiaolong,Tan, Weihong,Tang, Xiao-Jun,Wu, Yayun,Zhang, Zhen,Zhao, Rong,Zhou, Wei
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supporting information
p. 18386 - 18389
(2020/08/24)
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- Efforts toward the synthesis of (+)-Lyconadin A
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Abstract: Synthetic efforts toward the synthesis of (+)-lyconadin A are described. B-Alkyl Suzuki coupling is utilized for combining 2-iodo cyclohexenone with the piperidine subunit. The piperidine subunit is derived from 5-bromo-3-nicotinic acid, and iod
- Karella, Satish,Raghavan, Sadagopan
-
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- Discovery of 5-((5-chloro-2-methoxyphenyl)sulfonamido)nicotinamide (SBI-425), a potent and orally bioavailable tissue-nonspecific alkaline phosphatase (TNAP) inhibitor
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Tissue-nonspecific alkaline phosphatase (TNAP) is an ectoenzyme crucial for bone matrix mineralization via its ability to hydrolyze extracellular inorganic pyrophosphate (ePPi), a potent mineralization inhibitor, to phosphate (Pi). B
- Pinkerton, Anthony B.,Sergienko, Eduard,Bravo, Yalda,Dahl, Russell,Ma, Chen-Ting,Sun, Qing,Jackson, Michael R.,Cosford, Nicholas D.P.,Millán, José Luis
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- SULFONAMIDE COMPOUNDS AND USES AS TNAP INHIBITORS
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Described herein are compounds that modulate the activity of TNAP. In some embodiments, the compounds described herein inhibit TNAP. In certain embodiments, the compounds described herein are useful in the treatment of conditions associated with hyper- mineralization.
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Paragraph 00492-00493
(2013/09/12)
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- NOVEL AMINOPYRIDINE DERIVATIVES HAVING AURORA A SELECTIVE INHIBITORY ACTION
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The present invention relates to a compound of Formula (I): wherein: R 1 is H, -NHCOOR 1a , C 5-6 cycloalkyl, or phenyl; where the cycloalkyl and phenyl each independently may be substituted with one to three of the same or different substituents selected from R 10 ; R 1a is C 1-3 alkyl which may be substituted with one to three of the same or different substituents selected from F and Cl; R 2 is H, -COOH, -CH 2 COOH, -COOR 2a , or -CH 2 COOR 2a ; R 2a is C 1-2 alkyl, where the alkyl may be substituted with one to three of the same or different substituents selected from halogen atoms; R 3 is H, C 1-6 alkyl, where the alkyl may be substituted with one to three of the same or different substituents selected from R 11 ; R 10 is F, Cl, CF 3 , or C 1-2 alkyl; R 11 is halogen atom, hydroxy, or cyano; W is selected from: W2a is H, halogen atom, cyano, C 1-2 alkyl, or C 3-5 cycloalkyl, or a pharmaceutically acceptable salt or ester thereof.
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Page/Page column 35-36
(2010/11/03)
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- Facile synthesis of peptide-porphyrin conjugates: Towards artificial catalase
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A facile synthetic method for peptide-porphyrin conjugates containing four peptide units on one porphyrin was developed using chemoselective reactions. The key building blocks, 5,10,15,20-tetrakis(3-azidophenyl)porphyrin 1 and 5,10,15,20-tetrakis(5-azido-3-pyridyl)porphyrin 2, were efficiently synthesized and used as substrates for two well-known chemoselective reactions, traceless Staudinger ligation and copper-catalyzed azide alkyne cycloaddition (so-called click chemistry). Both reactions gave the desired compounds, and click chemistry was superior for our purpose. To confirm the value of the established methodology, nine peptide-porphyrin conjugates were synthesized, and their catalase- and peroxidase-like activity in water was evaluated. Our synthetic strategy is expected to be valuable for the preparation of artificial heme protein models.
- Umezawa, Naoki,Matsumoto, Nobuyoshi,Iwama, Shinsuke,Kato, Nobuki,Higuchi, Tsunehiko
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experimental part
p. 6340 - 6350
(2010/10/04)
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- (3-HYDROXY-4-AMINO-BUTAN-2-YL) -3- (2-THIAZOL-2-YL-PYRROLIDINE-1-CARBONYL) BENZAMIDE DERIVATIVES AND RELATED COMPOUNDS AS BETA-SECRETASE INHIBITORS FOR TREATING
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The present invention provides novel beta-secretase inhibitors and methods for their use, including methods of treating of Alzheimer's disease. (Formula)
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Page/Page column 95
(2009/05/29)
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- Synthesis of (aryloxyacetylamino)-isonicotinic/nicotinic acid analogues as potent hypoxia-inducible factor (HIF)-1α inhibitors
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We report a new series of HIF-1α inhibitors which were obtained through structural modifications of previously reported lead 1. The in vitro inhibitory potencies of newly synthesized compounds were evaluated against hypoxia-induced HIF-1 activation using
- Boovanahalli, Shanthaveerappa K.,Jin, Xuejun,Jin, Yinglan,Kim, Jin Hwan,Dat, Nguyen Tien,Hong, Young-Soo,Lee, Jeong Hyung,Jung, Sang-Hun,Lee, Kyeong,Lee, Jung Joon
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p. 6305 - 6310
(2008/09/17)
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- ENZYME INHIBITORS
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Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers, wherein R1 is a carboxylic acid group (-COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2is the side chain of a natural or non-natural alpha amino acid; Y is a bond, -C(=O)-, -S(=O)2-, -C(=O)O-, -C(O)NR3-, -C(=S)-NR3 , -C(=NH)NR3 or -S(=O)2NR3- wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p- wherein m, n and p are independently 0 or 1 , Q is (i) an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5 - 13 ring members, or (ii), in the case where both m and p are 0, a divalent radical of formula -X2-Q1- or -Q1-X2- wherein X2 is -O-, S- or NRA- wherein RA is hydrogen or optionally substituted C1-C3 alkyl, and Q1 is an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5 - 13 ring members, AIk1 and AIk2 independently represent optionally substituted divalent C3-C7 cycloalkyl radicals, or optionally substituted straight or branched, C1-C6 alkylene, C2-C6 alkenylene ,or C2-C6 alkynylene radicals which may optionally contain or terminate in an ether (-O-), thioether (-S-) or amino (-NRA-) link wherein RA is hydrogen or optionally substituted C1-C3 alkyl; X1 represents a bond; -C(=O); or -S(=O)2-; -NR4C(=O)-, -C(=O)NR4-, -NR4C(=O)NR5- , -NR4S(=O)2-, or -S(=O)2NR4-wherein R4 and R5 are independently hydrogen or optionally substituted C1-C6 alkyl; z is 0 or 1 ; A represents an optionally substituted mono-, bi- or tri-cyclic carbocyclic or heterocyclic ring system wherein the radicals R1R2NH-Y-L1-X1-[CH2]Z- and HONHCO-[LINKER]- are attached different ring atoms; and -[Linker]- represents a divalent linker radical linking a ring atom in A with the hydroxamic acid group CONHOH, the length of the linker radical, from the terminal atom linked to the ring atom of A to the terminal atom linked to the hydroxamic acid group, is equivalent to that of an unbranched saturated hydrocarbon chain of from 3-10 carbon atoms.
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Page/Page column 97
(2008/06/13)
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- AZOLECARBOXAMIDE HERBICIDES
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Compounds of Formula (I), and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation, wherein J is (J-1), (J-2,(J-3), (J-4), (J-5), (J-6), (J-7), (J-8) and R1a, R1b, R1c, R2a, R2b, R3, R4, R05, T, U, W, Y and Z are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (I) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula (I). Also disclosed are mixtures and compositions comprising a herbicidally effective amount of a compound of Formula (Iz) wherein J, R1a, R1b, R1c, R2a, R2b, R3, R4, R05, T, U, W, Y and Z are as defined in the disclosure; and an effective amount of another herbicide or herbicide safener. Also disclosed is a method for selectively controlling undesired vegetation in a crop that involves contacting the locus of a crop with an effective amount of a compound of Formula (Iz) and a effective amount of a safener.
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- Stereoelectronic substituent effects in polyhydroxylated piperidines and hexahydropyridazines
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From the pKa values of the conjugate acids of a large series of hydroxylated piperidines and hexahydropyridazines, a consistent difference in basicity was found between stereo-isomers having an axial or equatorial hydroxyl (OH) group either β o
- Jensen, Henrik Helligso,Lyngbye, Laila,Jensen, Astrid,Bols, Mikael
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p. 1218 - 1226
(2007/10/03)
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