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3
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77949306395
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It can be argued that in addition to the 20 classical natural amino acids, several other less common ones such as selenocysteine are also proteinogenic
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It can be argued that in addition to the 20 classical natural amino acids, several other less common ones such as selenocysteine are also proteinogenic.
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For another particularly mild method for converting carboxylic acids, including racemic malonate half-esters, into t-Boc-protected amines, see: a
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For another particularly mild method for converting carboxylic acids, including racemic malonate half-esters, into t-Boc-protected amines, see: (a) Lebel, H.; Leogane, O. Org. Lett, 2005, 7, 4107-4110.
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For example, see: a
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For example, see: (a) Fischer, L.; Didierjean, C.; Jolibois, F.; Semetey, V.; Lozano, J. M.; Briand, J.-P.; Marraud, M.; Poteau, R.; Guichard, G. Org. Biomol. Chem, 2008, 6, 2596-2610.
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47
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b) Obrecht, D.; Bohdal, U.; Broger, C.; Bur, D.; Lehmann, C.; Ruffieux, R.; Schönholzer, P.; Spiegler, C.; Müller, K. Helv. Chim. Ada 1995, 78, 563-580.
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49
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For a general review, see: (a) Banthorpe, D. V. In The Chemistry of the Azido Group; Patai, S., Ed.; Wiley: New York, 1971; Chapter 7. For examples of stereochemical studies of the Curtius rearrangement, see:
-
For a general review, see: (a) Banthorpe, D. V. In The Chemistry of the Azido Group; Patai, S., Ed.; Wiley: New York, 1971; Chapter 7. For examples of stereochemical studies of the Curtius rearrangement, see:
-
-
-
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50
-
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0037652079
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b) van Well, R. M.; Overkleeft, H. S.; van Boom, J. H.; Coop, A.; Wang, J. B.; Wang, H.; van der Marel, G. A.; Overhand, M. Eur. J. Org. Chem. 2003, 9, 1704-1710.
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-
53
-
-
77949287679
-
-
Note that replacement of the carboxyl group in half-esters 5 by a free or protected amino group with retention of configuration changes the absolute configuration, from. R to S because the amino group has a higher priority than the carboxyl group as assigned by the Cahn - Ingold - Prelog rules.
-
Note that replacement of the carboxyl group in half-esters 5 by a free or protected amino group with retention of configuration changes the absolute configuration, from. R to S because the amino group has a higher priority than the carboxyl group as assigned by the Cahn - Ingold - Prelog rules.
-
-
-
-
54
-
-
77949289770
-
-
PLE consists of several isozymes, which display different enantioselectivities. While individual, isozymes have been obtained by cloning and recombinant expression methods, and may offer advantages over the commercial product, the accessibility and convenience of the latter make it desirable for synthetic applications such as those reported herein
-
PLE consists of several isozymes, which display different enantioselectivities. While individual, isozymes have been obtained by cloning and recombinant expression methods, and may offer advantages over the commercial product, the accessibility and convenience of the latter make it desirable for synthetic applications such as those reported herein.
-
-
-
-
55
-
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36148932175
-
-
For lead references to studies of PLE isozymes, see: a
-
For lead references to studies of PLE isozymes, see: (a) Hummel, A.; Brüsehaber, E.; Böttcher, D.; Trauthwein, H.; DodererK.; Bornscheuer, U. T. Angew. Chem., Int. Ed. 2007, 46, 8492-8494.
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DodererK5
Bornscheuer, U.T.6
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37549002906
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b) Hermann, M.; Kietzmann, M. U.; Ivančić, M.; Zenzmaier, C.; Luiten, R. G. M.; Skranc, W.; Wubbolts, M.; Winkler, M.; Birner-Gruenberger, R.; Pichler, H.; Schwab, H. J. Biotechnology 2008, 133, 301-310.
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60
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0344791365
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For a racemic preparation of 5c, see
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For a racemic preparation of 5c, see: Arcadi, A.; Cacchi, S.; Delmastro, M.; Marinelli, F. Synlett 1991, 407-409.
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Arcadi, A.1
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