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1542685048
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note
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In fact, NMR signals of aromatic protons of 5 shifted upfield by mixing with 4 in an aqueous solution, indicating mutual assembly through a face-to-face like interaction: Upfield shifts of 0.036 and 0.040 ppm were observed in the chemical shifts of the m- and o-protons of p-nitrophenyl group of 5 (26.5 mM), respectively, by adding 4 (0.5 mol amt. to 5).
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34
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1542685051
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note
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4b)
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36
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33845280315
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Regioselective acetylation of carbohydrates by the use of lipase: a) W. J. Hennen, H. M. Sweers, Y-F. Wang, and C.-H. Wong, J. Org. Chem., 53, 4939 (1988) b) M. Therisod and A. M. Klivanov, J. Am. Chem. Soc., 108, 5638 (1986) c) H. Waldmann, in "Enzyme Caralysis in Organic Synthesis," ed by K. Drauz and H. Waldmann, VCH, Weinheim (1995), Vol. 2, pp. 868-882.
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37
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0346996064
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Regioselective acetylation of carbohydrates by the use of lipase: a) W. J. Hennen, H. M. Sweers, Y-F. Wang, and C.-H. Wong, J. Org. Chem., 53, 4939 (1988) b) M. Therisod and A. M. Klivanov, J. Am. Chem. Soc., 108, 5638 (1986) c) H. Waldmann, in "Enzyme Caralysis in Organic Synthesis," ed by K. Drauz and H. Waldmann, VCH, Weinheim (1995), Vol. 2, pp. 868-882.
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Klivanov, A.M.2
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38
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0011861953
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ed by K. Drauz and H. Waldmann, VCH, Weinheim
-
Regioselective acetylation of carbohydrates by the use of lipase: a) W. J. Hennen, H. M. Sweers, Y-F. Wang, and C.-H. Wong, J. Org. Chem., 53, 4939 (1988) b) M. Therisod and A. M. Klivanov, J. Am. Chem. Soc., 108, 5638 (1986) c) H. Waldmann, in "Enzyme Caralysis in Organic Synthesis," ed by K. Drauz and H. Waldmann, VCH, Weinheim (1995), Vol. 2, pp. 868-882.
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Waldmann, H.1
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39
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0001690116
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40
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1542580261
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note
-
Since the 6′-O-acetyl group in 7 was partially cleaved or migrated when the mixture was heated at 80°C in a phosphate buffer (pH 7.3) to dissolve 7, its supersaturated solution was prepared as described in the experimental section. The 6′-O-acetyl group in 7 was neither cleaved nor migrated under the enzymatic reaction conditions (pH 7.3, 37°C).
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41
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0000019855
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T. Takao, Y. Tambara, A. Nakamura, K. Yoshino, H. Fukuda, M. Fukuda, and Y. Shimonishi, Rapid Commun. Mass Spectrom., 10, 637 (1996).
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Takao, T.1
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Yoshino, K.4
Fukuda, H.5
Fukuda, M.6
Shimonishi, Y.7
-
42
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1542685049
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note
-
Unit Definition: One unit of the enzyme hydrolyzes 1.0 μmol of ο-nitrophenyl β-D-galactopyranoside to ο-nitrophenol and D-galactose per min at pH 7.3 and 37°C.
-
-
-
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43
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1542580262
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note
-
Unit difinition: One modified "Fishman" unit of the enzyme liberates 1.0 μg of phenolphthalein from phenolphthalein glucuronide per hour at pH 5.0 and 37°C.
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