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Lu X, Li M, Huang C, Lowinger MB, Xu W, Yu L, Byrn SR, Templeton AC, Su Y. Atomic-Level Drug Substance and Polymer Interaction in Posaconazole Amorphous Solid Dispersion from Solid-State NMR. Mol Pharm 2020; 17:2585-2598. [DOI: 10.1021/acs.molpharmaceut.0c00268] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xingyu Lu
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Mingyue Li
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Chengbin Huang
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Michael B. Lowinger
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Wei Xu
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Lian Yu
- School of Pharmacy and Department of Chemistry, University of Wisconsin−Madison, Madison, Wisconsin 53705, United States
| | - Stephen R. Byrn
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, Indiana 47907, United States
| | - Allen C. Templeton
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Yongchao Su
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, Indiana 47907, United States
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
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Tautomerism and conformational analysis in 3-fluoropiperidin-2-one inform on F···HO intramolecular hydrogen bond. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2018.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Giuffredi GT, Gouverneur V, Bernet B. Intramolecular OH⋅⋅⋅FC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF2. Angew Chem Int Ed Engl 2013; 52:10524-8. [DOI: 10.1002/anie.201303766] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 07/11/2013] [Indexed: 11/08/2022]
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Intramolecular OH⋅⋅⋅FC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF2. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303766] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Schneider HJ. Hydrogen bonds with fluorine. Studies in solution, in gas phase and by computations, conflicting conclusions from crystallographic analyses. Chem Sci 2012. [DOI: 10.1039/c2sc00764a] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Kwon MK, Sung EM. Intramolecular Hydrogen Bonding in 2-Fluorocyclopropanemethanol and 2-Chlorocyclopropanemethanol as Studied by ab Initio Calculation. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2010. [DOI: 10.5012/jkcs.2010.54.3.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Møllendal H, Frank D, de Meijere A. Structural and conformational properties and intramolecular hydrogen bonding of (methylenecyclopropyl)methanol, as studied by microwave spectroscopy and quantum chemical calculations. J Phys Chem A 2006; 110:6054-9. [PMID: 16671675 DOI: 10.1021/jp060926e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The microwave spectra of (methylenecyclopropyl)methanol (H(2)C=C(3)H(3)CH(2)OH) and one deuterated species (H(2)C=C(3)H(3)CH(2)OD) have been investigated in the 20-80 GHz spectral range. Accurate spectral measurements have been performed in the 40-80 GHz spectral interval. The spectra of two rotameric forms, denoted conformer I and conformer IX, have been assigned. Both these rotamers are stabilized by intramolecular hydrogen bonds formed between the hydrogen atom of the hydroxyl group and the pseudo-pi electrons on the outside of the cyclopropyl ring, the so-called "banana bonds". The carbon-carbon bond lengths in the ring are rather different. The bonds adjacent to the methylene group (H(2)C=) are approximately 7 pm shorter that the carbon-carbon bond opposite to this group. It is found from relative intensity measurements of microwave transitions that conformer IX, in which the hydrogen bond is formed with the banana bonds of the long carbon-carbon bond, is 0.4(3) kJ/mol more stable than conformer I, where the hydrogen bond is formed with the pseudo-pi electrons belonging to the shortest carbon-carbon bond of the ring. The microwave study has been augmented by quantum chemical calculations at the MP2/6-311++G, G3 and B3LYP/6-311++G levels of theory.
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Affiliation(s)
- Harald Møllendal
- Department of Chemistry, University of Oslo, P.O. Box 1033, NO-0315 Oslo, Norway.
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Wang CS, Zhang Y, Gao K, Yang ZZ. A new scheme for determining the intramolecular seven-membered ring N–H⋯OC hydrogen-bonding energies of glycine and alanine peptides. J Chem Phys 2005; 123:24307. [PMID: 16050745 DOI: 10.1063/1.1979471] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this paper a new scheme was proposed to calculate the intramolecular hydrogen-bonding energies in peptides and was applied to calculate the intramolecular seven-membered ring N-H...O=C hydrogen-bonding energies of the glycine and alanine peptides. The density-functional theory B3LYP6-31G(d) and B3LYP6-311G(d,p) methods and the second-order Moller-Plesset perturbation theory MP26-31G(d) method were used to calculate the optimal geometries and frequencies of glycine and alanine peptides and related structures. MP26-311++G(d,p), MP26-311++G(3df,2p), and MP2/aug-cc-pVTZ methods were then used to evaluate the single-point energies. It was found that the B3LYP6-31G(d), MP26-31G(d), and B3LYP6-311G(d,p) methods yield almost similar structural parameters for the conformers of the glycine and alanine dipeptides. MP2/aug-cc-pVTZ predicts that the intramolecular seven-membered ring N-H...O=C hydrogen-bonding strength has a value of 5.54 kcal/mol in glycine dipeptide and 5.73 and 5.19 kcal/mol in alanine dipeptides, while the steric repulsive interactions of the seven-membered ring conformers are 4.13 kcal/mol in glycine dipeptide and 6.62 and 3.71 kcal/mol in alanine dipeptides. It was also found that MP26-311++G(3df,2p) gives as accurate intramolecular N-H...O=C hydrogen-bonding energies and steric repulsive interactions as the much more costly MP2/aug-cc-pVTZ does.
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Affiliation(s)
- Chang-Sheng Wang
- Department of Chemistry, Liaoning Normal University, Dalian 116029, People's Republic of China.
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