1960
DOI: 10.1002/cber.19600931137
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Synthese von S(−)‐Hyoscyamin‐[methyl‐14C]

Abstract: 268 1 ester freigesetzte Alkohol in das 3.5-Dinitro-benzoat ubergefiihrt. Es schrnolz bei 83.5' und stellte den authentischen Ester des Pyroalkohols 111 dar. b) Aus ( -)-6-Hydroxymethyl-A2~~(9)-p-menthadien (111) : Die unter den gleichen Bedingungen wie bei a) durchgefiihrte Dehydrierung des Alkohols I11 lieferte in 75-proz. Ausbeute einen Aldehyd, dessen Semicarbazon (Schmp. 162") im Gernisch mit dem vorstehenden Derivat keine Depression zeigte. (+ )-6-Merhyl-A2.0(9)-p-menrhadien ( I X ) : 20 g Aldehyd VIII w… Show more

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Cited by 11 publications
(3 citation statements)
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“…Excluding the authors' work, only Fodor (5) and Werner (6) have used classical methods to label tropine. Classical, microsynthetic methods for selectively labeling tropine and the tropine moiety of atropine are needed badly.…”
Section: Keyphrasesmentioning
confidence: 99%
“…Excluding the authors' work, only Fodor (5) and Werner (6) have used classical methods to label tropine. Classical, microsynthetic methods for selectively labeling tropine and the tropine moiety of atropine are needed badly.…”
Section: Keyphrasesmentioning
confidence: 99%
“…H atropine labelled on the tropic acid moiety has been recently published. 9 Unfortunately, these methods are not suitable for our purpose for the following reasons: long multistep syntheses [2][3][4][5][6][7] or labelling on the tropic acid moiety. 3,9 Noratropine 3, the first intermediate needed, has been prepared in various ways: partial synthesis from nortropine, 10 demethylation of atropine by reaction with trichloroethyl chloroformate followed by treatment with zinc dust in acetic acid, 11 oxidative demethylation of atropine with potassium permanganate with low yield, 12,13 photochemical demethylation of atropine 14,15 and iron salt mediated Polonovski demethylation of atropine N-oxide.…”
Section: Introductionmentioning
confidence: 99%
“…Biosynthetic atropines (3,4) are suitably labeled, and could be used to determine the metabolic fate of the tropine moiety, but complexities of preparation have limited their availability and prevented their use in animal studies. Fodor et al (5) and Werner et al (6) prepared N-methyl-14C-tropine, then esterified it with unlabeled tropic acid to obtain tropine-labeled atropine. Subsequent metabolic studies (7), although not extensive, clearly indicate the need to label tropine and atropine in other positions.…”
mentioning
confidence: 99%