- Discovery of N-Substituted 3-Amino-4-(3-boronopropyl)pyrrolidine-3-carboxylic Acids as Highly Potent Third-Generation Inhibitors of Human Arginase i and II
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Recent efforts to identify new highly potent arginase inhibitors have resulted in the discovery of a novel family of (3R,4S)-3-amino-4-(3-boronopropyl)pyrrolidine-3-carboxylic acid analogues with up to a 1000-fold increase in potency relative to the current standards, 2-amino-6-boronohexanoic acid (ABH) and N-hydroxy-nor-l-arginine (nor-NOHA). The lead candidate, with an N-2-amino-3-phenylpropyl substituent (NED-3238), example 43, inhibits arginase I and II with IC50 values of 1.3 and 8.1 nM, respectively. Herein, we report the design, synthesis, and structure-activity relationships for this novel series of inhibitors, along with X-ray crystallographic data for selected examples bound to human arginase II.
- Van Zandt, Michael C.,Jagdmann, G. Erik,Whitehouse, Darren L.,Ji, Minkoo,Savoy, Jennifer,Potapova, Olga,Cousido-Siah, Alexandra,Mitschler, Andre,Howard, Eduardo I.,Pyle, Anna Marie,Podjarny, Alberto D.
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p. 8164 - 8177
(2019/10/02)
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- METHOD OF PREPARING (3R,4S)-3-ACETAMIDO-4-ALLYL-N-(TERT-BUTYL)PYRROLIDINE-3-CARBOXAMIDE
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A method is provided to conveniently separate racemic (3R,4S)-3-acetamido-4-allyl-N-(tert-butyl)pyrrolidine-3-carboxamide and (3S,4R)-3-acetamido-4-allyl-N-(tert-butyl)pyrrolidine-3-carboxamide using selective crystallization with chiral carboxylic acids.
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Paragraph 0173; 0174
(2019/01/04)
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- Single-hole hollow nanospheres from enantioselective self-assembly of chiral AIE carboxylic acid and amine
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Phenylacrylonitrile tartaric acids have been found to enantioselectively self-assemble with an enantiomer of a chiral amine to form either nanofibers or nanospheres that exhibit aggregation-induced emission (AIE). The nanofibers exhibited stronger emission intensity and longer wavelengths of absorption and emission than the nanospheres because of increased π-π conjugation, an effect previously unseen in AIE. When the solvent consists of a mixture of water and THF rather than water and ethanol, the resultant nanospheres have holes. The holes are the result of the dissolution of defects and a decrease in the bending energy. This is in contrast to hole formation from solvents flowing out of the nanospheres, as previously seen. Through control of the water/THF ratio, the size of the holes in the nanospheres can be tuned. Nanospheres with a single hole displayed both higher uptake capacity and larger release speed of the drug naproxen than closed nanospheres. The ability to adjust fluorescent properties of AIE molecules through the preparation of organic single-hole hollow nanospheres has also been investigated along with the implications of the AIE mechanism.
- Li, Dong-Mi,Zheng, Yan-Song
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body text
p. 1100 - 1108
(2011/04/12)
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- Chiral recognition based on enantioselectively aggregation-induced emission
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(Figure Presented) Novel chiral AIE compounds bearing a tartaric acid group were synthesized. They selectively aggregated with one enantiomer of a number of chiral amines, such that one enantiomer led to strong fluorescence and another enantiomer showed no or only weak fluorescence. This was used for the quantitative analysis of enantiomeric composition.
- Zheng, Yan-Song,Hu, Yu-Jian
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supporting information; body text
p. 5660 - 5663
(2009/12/26)
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- Acyloxyalkyl carbamate prodrugs, methods of synthesis, and use
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Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, pharmaceutical compositions comprising acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, methods of making prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, methods of using prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof and pharmaceutical compositions thereof for treating or preventing diseases or disorders such as spasticity or gastroesophageal reflux disease are disclosed. Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof and sustained release oral dosage forms thereof, which are suitable for oral administration, are also disclosed.
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Page/Page column 34
(2008/06/13)
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- Acyloxyalkyl carbamate prodrugs of sulfinic acids, methods of synthesis, and use
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Acyloxyalkyl carbamate prodrugs of 3-aminopropylsulfinic acid and analogs thereof, pharmaceutical compositions of 3-aminopropylsulfinic acid and analogs thereof, methods of making prodrugs of 3-aminopropylsulfinic acid and analogs thereof, methods of using prodrugs of 3-aminopropylsulfinic acid and analogs thereof, and pharmaceutical compositions thereof for treating or preventing diseases or disorders such as spasticity or gastroesophageal reflux disease are disclosed. Acyloxyalkyl carbamate prodrugs of 3-aminopropylsulfinic acid and analogs thereof and sustained release oral dosage forms thereof, which are suitable for oral administration, are also disclosed.
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Page/Page column 27-28
(2008/06/13)
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- ACYLOXYALKYL CARBAMATE PRODRUGS, METHODS OF SYNTHESIS AND USE
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The disclosures herein relate generally to acyloxyalkyl carbamate prodrugs of (±) 4 amino 3 (4 chlorophenyl)butanoic acid and analogs thereof, pharmaceutical compositions thereof , methods of making prodrugs of (±) 4 amino 3 (4 chlorophenyl)butanoic acid and analogs thereof, methods of using prodrugs of (±) 4 amino 3 (4 chlorophenyl)butanoic acid and analogs thereof, and pharmaceutical compositions thereof for treating or preventing common diseases and/or disorders such as spasticity and/or acid reflux disease. The disclosures herein also relate to acyloxyalkyl carbamate prodrugs of (±) 4 amino 3 (4 chlorophenyl)butanoic acid and analogs thereof which are suitable for oral administration and to sustained release oral dosage forms thereof.
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Page/Page column 102
(2008/06/13)
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- SYNTHESIS OF ACYLOXYALKYL CARBAMATE PRODRUGS AND INTERMEDIATES THEREOF
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Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
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Page/Page column 49
(2008/06/13)
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- KINETIC RESOLUTION OF ALCOHOLS AND AMINES BY MEANS OF D-(+)-DIBENZOYLTARTARIC ANHYDRIDE
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The kinetic resolution of alcohols and amines was realized by means of D-(+)-dibenzoyltartaric anhydride.It was shown that this reagent can be used to determine the absolute configuration of alkylphenylcarbinols and arylalkylamines.
- Kolomiets, V. F.,Gracheva, R. A.,Potapov, V. M.
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p. 283 - 284
(2007/10/02)
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