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0034712335
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Non-racemic N-aryl hydroxymethylpyrrolidinones can be prepared from protected hydroxymethylbutyrolactones (three steps from glutamic acid) and anilines by acylation, hydroxyl activation and intramolecular substitution
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Non-racemic N-aryl hydroxymethylpyrrolidinones can be prepared from protected hydroxymethylbutyrolactones (three steps from glutamic acid) and anilines by acylation, hydroxyl activation and intramolecular substitution Fujita M., Kitagawa O., Yamada Y., Izawa H., Hasegawa H., Taguchi T. J. Org. Chem. 65:2000;1108.
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31
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0033168078
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An aromatic nucleophilic ipso substitution approach was reported in which the N-aryl bond was formed by heating an HMPA solution of the pyroglutamic acid dianion with an activated fluorobenzene at 160 °C for 23 h, giving the product in 40% yield
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An aromatic nucleophilic ipso substitution approach was reported in which the N-aryl bond was formed by heating an HMPA solution of the pyroglutamic acid dianion with an activated fluorobenzene at 160 °C for 23 h, giving the product in 40% yield Atigadda V.R., Brouliette W.J., Duarte F., Ali S.M., Babu Y.S., Bantia S., Chand P., Chu N., Montgomery J.A., Walsh D.A., Sudbeck E.A., Finley J., Luo M., Air G.M., Laver G.W. J. Med. Chem. 42:1999;2332.
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Walsh, D.A.10
Sudbeck, E.A.11
Finley, J.12
Luo, M.13
Air, G.M.14
Laver, G.W.15
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36
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47
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85030931509
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note
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(±)-11 was prepared in 22% overall yield (4 steps from (±)-glutamic acid) according to the procedure of Tamm and co-workers for the optically active compound, see Ref. 28.
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52
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85030916165
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note
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The enantiomeric purities of the higher homologs ( 16 , 17 , 18a,b ) were not established experimentally since there was no evidence of racemization in any of the lower homologs.
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53
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85030919842
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For general details see Ref. 6b
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For general details see Ref. 6b.
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