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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1002/mrc.2745
|2 doi
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|a eng
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|a Dobado, Jose A
|e verfasserin
|4 aut
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|a NMR assignment in regioisomeric hydroquinones
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
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|a ƒa Online-Ressource
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|a Date Completed 07.11.2011
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|a Date Revised 13.05.2011
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2011 John Wiley & Sons, Ltd.
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|a A set of regioisomeric pairs of tricyclic hydroquinones, analogues of antitumor 9,10-dihydroxy-4,4-dimethyl-5,8-dihydroanthracen-1(4H)-one (1) and other derivatives, were synthesized and their regiochemistry and NMR spectra assigned by using (1)H-detected one-bond (C-H) HMQC and long-range C-H HMBC, in good agreement with theoretical O3LYP/Alhrichs-pVTZ calculations. The 5-hydroxymethyl derivatives (11, 15, 19) showed a (3)J(H, H) coupling constant of methylene protons evidencing the presence of a seven-membered intramolecular hydrogen bonded ring, not observed for the 8-hydroxymethyl isomers
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Hydroquinones
|2 NLM
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|a Gómez-Tamayo, José C
|e verfasserin
|4 aut
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|a Calvo-Flores, Francisco G
|e verfasserin
|4 aut
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|a Martínez-García, Henar
|e verfasserin
|4 aut
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|a Cardona, Wilson
|e verfasserin
|4 aut
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|a Weiss-López, Boris
|e verfasserin
|4 aut
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|a Ramírez-Rodríguez, Oney
|e verfasserin
|4 aut
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|a Pessoa-Mahana, Hernán
|e verfasserin
|4 aut
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|a Araya-Maturana, Ramiro
|e verfasserin
|4 aut
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 49(2011), 6 vom: 01. Juni, Seite 358-65
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
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|g volume:49
|g year:2011
|g number:6
|g day:01
|g month:06
|g pages:358-65
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|u http://dx.doi.org/10.1002/mrc.2745
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