- Achieving High 1H Nuclear Hyperpolarization Levels with Long Lifetimes in a Range of Tuberculosis Drug Scaffolds
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Despite the successful use of isoniazid, rifampicin, pyrazinamide and ethambutol in the treatment of tuberculosis (TB), it is a disease of growing global concern. We illustrate here a series of methods that will dramatically improve the magnetic resonance imaging (MRI) detectability of nineteen TB-relevant agents. We note that the future probing of their uptake and distribution in vivo would be expected to significantly enhance their efficacy in disease treatment. This improvement in detectability is achieved by use of the parahydrogen based SABRE protocol in conjunction with the 2H-labelling of key sites within their molecular structures and the 2H-labelling of the magnetization transfer catalyst. The T1 relaxation times and polarization levels of these agents are quantified under test conditions to produce a protocol to identify structurally optimized motifs for future detection. For example, deuteration of the 6-position of a pyrazinamide analogue leads to a structural form that exhibits T1 values of 144.5 s for 5-H with up to 20 % polarization. This represents a >7-fold extension in relaxation time and almost 10-fold improvement in polarization level when compared to its unoptimized structure.
- Norcott, Philip,Rayner, Peter J.,Green, Gary G. R.,Duckett, Simon B.
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- KIF18A INHIBITORS
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Compounds of formula (I): as defined herein, and synthetic intermediates thereof, which are capable of modulating KIF18A protein thereby influencing the process of cell cycle and cell proliferation to treat cancer and cancer-related diseases. The invention also includes pharmaceutical compositions, including the compounds, and methods of treating disease states related to the activity of KIF18A.
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Paragraph 0189; 0279-0280
(2021/02/12)
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- UNSATURATED HETEROCYCLOALKYL AND HETEROAROMATIC ACYL HYDRAZONE LINKERS, METHODS AND USES THEREOF
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The present application is directed to compounds of Formula (I), (II), (III) or (IV) compositions comprising these compounds, methods for their preparation and their uses, for example, as acyl hydrazone linkers, which can link two chemical entities together for further use as medicaments and/or diagnostics.
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Paragraph 00255-00256
(2020/12/30)
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- HETEROARYL AMIDES USEFUL AS KIF18A INHIBITORS
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The present invention relates to chemical compounds having a general formula (I), as defined herein, and synthetic intermediates thereof, which are capable of modulating KIF18A protein thereby influencing the process of cell cycle and cell proliferation to treat cancer and cancer-related diseases. The invention also includes pharmaceutical compositions, including the compounds, and methods of treating disease states related to the activity of KIF18A.
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Paragraph 0227-0228
(2020/07/14)
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- SHP2 PHOSPHATASE INHIBITORS AND METHODS OF USE THEREOF
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The present disclosure relates to novel compounds including formula (X) and pharmaceutical compositions thereof, and methods for inhibiting the activity of SHP2 phosphatase with the compounds and compositions of the disclosure. The present disclosure further relates to, but is not limited to, methods for treating disorders associated with SHP2 deregulation with the compounds and compositions of the disclosure.
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Paragraph 0163
(2019/10/15)
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- PYRAZOLO[3,4-B]PYRAZINE DERIVATIVES AS SHP2 PHOSPHATASE INHIBITORS
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The present invention relates to novel compounds and pharmaceutical compositions thereof, and methods for inhibiting the activity of SHP2 phosphatase with the compounds and compositions of the invention. The present invention further relates to, but is not limited to, methods for treating disorders associated with SHP2 deregulation with the compounds ad compositions of the invention.
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Paragraph 0127; 0128; 0129
(2018/05/24)
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- PERFLUORINATED CYCLOPROPYL FUSED 1,3-OXAZIN-2-AMINE COMPOUNDS AS BETA-SECRETASE INHIBITORS AND METHODS OF USE
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PERFLUORINATED CYCLOPROPYL FUSED 1,3-OXAZIN-2-AMINE COMPOUNDS AS BETA-SECRETASE INHIBITORS AND METHODS OF USE ABSTRACT OF THE DISCLOSURE The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula I: {INSERT STRUCTURE HERE} I wherein variables A4, A5, A6, A8, each of Ra, Rb, R1, R2, R3 and R7 of Formula I, independently, are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and uses of the compounds and compositions for treatment of disorders and/or conditions related to A-beta plaque formation and deposition, resulting from the biological activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions. The invention further provides compounds of Formulas II and III, and sub-formula embodiments thereof, intermediates and methods for preparing compounds of the invention.
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Page/Page column 161
(2014/09/29)
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- AMINO-DIHYDROTHIAZINE AND AMINO-DIOXIDO DIHYDROTHIAZINE COMPOUNDS AS BETA-SECRETASE ANTAGONISTS AND METHODS OF USE
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The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula I: wherein variables A4, A5, A6, A8, R1, R2, R3, R7 and n of Formula I, independently, are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and corresponding uses of the compounds and compositions for treatment of disorders and/or conditions related to A-beta plaque formation and deposition, resulting from the biological activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions. The invention further provides compounds of Formula II and sub-formula embodiments thereof, intermediates and processes and methods useful for the preparation of compounds of Formulas I-II.
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Page/Page column
(2014/05/07)
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- SUBSTITUTED AMINO-ACRYLCARBOXAMIDES AS KCNQ2/3 MODULATORS
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The invention relates to amino-arylcarboxamides, to pharmaceutical compositions containing these compounds and also to these compounds for use in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
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Paragraph 0700
(2014/06/11)
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- SUBSTITUTED AMINO-ARYLCARBOXAMIDES AS KCNQ2/3 MODULATORS
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The invention relates to amino-arylcarboxamides of formula (I), to pharmaceutical compositions containing these compounds and also to these compounds for use In the treatment and/or prophylaxis of pain and further diseases and/or disorders.
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Page/Page column 64
(2014/06/23)
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- Studies on the regioselective nucleophilic aromatic substitution (S NAr) reaction of 2-substituted 3,5-dichloropyrazines
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Differences in regioselectivity were observed during the SNAr reaction of amines with unsymmetrical 3,5-dichloropyrazines. This study revealed that when the 2-position of the pyrazine was occupied with an electron-withdrawing group (EWG), nucle
- Scales, Stephanie,Johnson, Sarah,Hu, Qiyue,Do, Quyen-Quyen,Richardson, Paul,Wang, Fen,Braganza, John,Ren, Shijian,Wan, Yadong,Zheng, Baojiang,Faizi, Darius,McAlpine, Indrawan
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supporting information
p. 2156 - 2159
(2013/06/05)
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- PYRAZOLE PYRAZINE AMINE COMPOUNDS AS KINASE INHIBITORS, COMPOSITIONS THEREOF AND METHODS OF TREATMENT THEREWITH
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Provided herein are Pyrazole Pyrazine Amine Compounds having the following structure:Formula (I). Wherein Q and R1-R3 are as defined herein, compositions comprising an effective amount of a Pyrazole Pyrazine Amine Compound and methods for treating or preventing inflammatory conditions, immunological conditions, cancer, neurodegenerative diseases, age-related diseases, cardiovascular diseases and metabolic conditions, or conditions treatable or preventable by inhibition of an IKK, or an IKK pathway, comprising administering an effective amount of a Pyrazole Pyrazine Amine Compound to a patient in need thereof.
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Page/Page column 113
(2009/09/04)
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- Cyclic compounds
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1. A cyclic compound of the formula (I) or a pharmacologically acceptable salt thereof, wherein X is ═CH— or ═N—, Y is —NH—, —NR4—, —S—, —O—, —CH═N—, —N═CH—, —N═N—, —CH═CH—, etc., R1 is a lower alkoxy group, an amino group, a heterocyclic ring containing N atom(s), or a hydroxy group substituted by a heterocyclic ring containing N atom(s) (each of which is optionally substituted), R2 is a lower alkylamino group which is optionally substituted by an aryl group, a lower alkoxy group which is optionally substituted by an aryl group, a lower alkoxy group substituted by an aromatic heterocyclic ring containing N atom(s), R3 is an aryl group, a heterocyclic ring containing N atom(s), a lower alkyl group, a lower alkoxy group, a cyclo lower alkoxy group, a hydroxy group substituted by a heterocyclic ring containing N atom(s), or an amino group (each of which is optionally substituted), and R3 and a substituent in Y may be combined to form a lactone ring. The compound of the present invention has excellent selective PDE V inhibitory activity and therefore, is useful as a therapeutic or prophylactic drug for treating various diseases due to functional disorders on cGMP-signaling.
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- Aromatic nitrogen-containing 6-membered cyclic compounds
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An aromatic nitrogen-containing 6-membered cyclic compound of the formula (I): wherein Ring A is a substituted or unsubstituted nitrogen-containing heterocyclic group; R1 is a substituted or unsubstituted lower alkyl group, —NH—Q—R3 (R3 is a substituted or unsubstituted nitrogen containing heterocyclic group, and Q is a lower alkylene group or a single bond), or —NH—R4 (R4 is a substituted or unsubstituted cycloalkyl group); R2 is a substituted or unsubstituted aryl group; one of Y and Z is ═CH—, and the other is ═N—, or a pharmaceutically acceptable salt thereof, these compounds exhibiting excellent selective PDE V inhibitory activities, and hence, being useful in the prophylaxis or treatment of penile erectile dysfunction, etc.
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