1989
DOI: 10.1002/chir.530010202
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Cited by 26 publications
(32 citation statements)
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“…It is worth noting that homochiral aryloxychlorohydrines 8 were directly obtained from the corresponding homochiral commercially available epichlorohydrines (6) and this represents a simplification of the synthetic route reported by Liu et al 12 The ee values for (S)-9 and (R)-9 were at least as high as those reported. 17 It is noteworthy that, in the case of lubeluzole [(S)-9] the use of both its sign of rotation (þ) 27 and its stereochemical notation (S) is not redundant 28 but is critical. In fact we found that (S)-9 is dextrorotatory when dissolved in MeOH as reported, 12 while it is levorotatory when the optical rotation is determined in CHCl 3 .…”
Section: Resultsmentioning
confidence: 99%
“…It is worth noting that homochiral aryloxychlorohydrines 8 were directly obtained from the corresponding homochiral commercially available epichlorohydrines (6) and this represents a simplification of the synthetic route reported by Liu et al 12 The ee values for (S)-9 and (R)-9 were at least as high as those reported. 17 It is noteworthy that, in the case of lubeluzole [(S)-9] the use of both its sign of rotation (þ) 27 and its stereochemical notation (S) is not redundant 28 but is critical. In fact we found that (S)-9 is dextrorotatory when dissolved in MeOH as reported, 12 while it is levorotatory when the optical rotation is determined in CHCl 3 .…”
Section: Resultsmentioning
confidence: 99%
“…The repeatedly observed differing pharmacological profiles of enantiomeric drugs [1] has led to strict legislation for chiral drugs to be marketed [2,3]. A major challenge facing the pharmaceutical industry today is therefore the development of new and improved methods for synthesis, purification, and analysis of optically active compounds.…”
Section: Introductionmentioning
confidence: 99%
“…As autoridades governamentais que regularizam a produção e distribuição de medicamentos, como por ex. o "Food and Drug Administration" (FDA) nos Estados Unidos 14,15 e órgãos equivalentes no Japão 16 , Canadá 17 e Comunidade Européia 18 , enfatizam a necessidade de se ter informações sobre as propriedades físico-químicas, cinéticas e dinâmicas estereosseletivas de fármacos quirais e recomendam a produção de novos fármacos na forma de enantiômeros puros. Infelizmente no Brasil ainda não existe nenhuma orientação nesse sentido 19 .…”
Section: Introductionunclassified