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Volumn 38, Issue 7, 1997, Pages 1169-1172

Sulfoximines in pseudopeptides

Author keywords

[No Author keywords available]

Indexed keywords

PSEUDOPEPTIDE; SULFOXIMINE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 0031575567     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)00001-4     Document Type: Article
Times cited : (51)

References (55)
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    • New address: Institut für Organische Chemie der RWTH Aachen, Prof.-Pirlet Str. 1, D-52074 Aachen, Germany. FAX: (int.) 241 8888 391; e-mail: Carsten.Bolm@RWTH-Aachen.de
    • 1. New address: Institut für Organische Chemie der RWTH Aachen, Prof.-Pirlet Str. 1, D-52074 Aachen, Germany. FAX: (int.) 241 8888 391; e-mail: Carsten.Bolm@RWTH-Aachen.de
  • 2
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    • 2. Reviews on peptide mimetics: (a) Gante, J. Angew. Chem. 1994,106, 1780; Angew. Chem. Int. Ed. Engl. 1994, 33, 1699.
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    • Gante, J.1
  • 3
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    • 2. Reviews on peptide mimetics: (a) Gante, J. Angew. Chem. 1994,106, 1780; Angew. Chem. Int. Ed. Engl. 1994, 33, 1699.
    • (1994) Angew. Chem. Int. Ed. Engl. , vol.33 , pp. 1699
  • 9
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    • 3. For other sulfur-containing pseudopeptides and peptide isosteres see: (a) Gennari, C.; Salom, B.; Potenza, D.; Williams, A. Angew. Chem. 1994, 106, 2181; Angew. Chem. Int. Ed. Engl. 1994, 33, 2067.
    • (1994) Angew. Chem. , vol.106 , pp. 2181
    • Gennari, C.1    Salom, B.2    Potenza, D.3    Williams, A.4
  • 10
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    • 3. For other sulfur-containing pseudopeptides and peptide isosteres see: (a) Gennari, C.; Salom, B.; Potenza, D.; Williams, A. Angew. Chem. 1994, 106, 2181; Angew. Chem. Int. Ed. Engl. 1994, 33, 2067.
    • (1994) Angew. Chem. Int. Ed. Engl. , vol.33 , pp. 2067
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    • (b) Gennari, C.; Nestler, H. P.; Salom, B.; Still, W. C. ibid. 1995, 107, 1892; 1995, 34, 1763.
    • (1995) Angew. Chem. Int. Ed. Engl. , vol.34 , pp. 1763
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    • (c) Johnson, C. R. in Comprehensive Organic Chemistry; Vol. 3, (Eds,: Barton, D.; Ollis, W. D.) Pergamon Press, Oxford 1979, p. 223.
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    • Johnson, C.R.1
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    • 5. Substituted β-carboxy sulfoximines have been used as transition-state analogue inhibitors of carboxypeptidase A: (a) Mock, W. L.; Zhang, J. Z. J. Biol. Chem. 1991, 266, 6393.
    • (1991) J. Biol. Chem. , vol.266 , pp. 6393
    • Mock, W.L.1    Zhang, J.Z.2
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    • Dissertation at the University of Marburg
    • (b) Felder, M. Dissertation at the University of Marburg, 1995.
    • (1995)
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    • 7. Both enantiomers of these sulfoximines can easily be obtained via resolution: (a) Fusco, R.; Tenconi, F. Chem. Ind. (Milan) 1965, 47, 61.
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    • Fusco, R.1    Tenconi, F.2
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    • Dissertation at the University of Kiel
    • 8. An analogous procedure has been reported: Reggelin, M.; Dissertation at the University of Kiel, 1989.
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    • (b) See also: Aldrichim. Acta. 1987, 20, 53.
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    • 10. Other α-sulfonimidoyl carboxy derivatives have been synthesized using various bases for deprotonation: (a) Hwang, K. -J. J. Org. Chem. 1986, 51, 99.
    • (1986) J. Org. Chem. , vol.51 , pp. 99
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    • 11. In peptide couplings with pteroyl acid derivatives, S-alkylhomocysteine sulfoximines react predominantely at the amine nitrogen. The biological activity of the corresponding folic acid analogues has been studied. Harvison, P. J.; Kalman, T. I. J. Med. Chem. 1992, 35, 1227.
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    • 15. PyBOP = (Benzotriazol-1-yl-oxy)-tris-pyrrolidino-phosphonium-hexafluorophosphate, DIEA = Diisopropylethylamine. For the use of these reagents: Coste, J.; LeNguyen, D.; Castro, B. Tetrahedron Lett. 1990, 31, 205.
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    • The HOBt-methode gave no product
    • 16. The HOBt-methode gave no product.
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    • No racemization was observed under these conditions. This coupling can also be done with PyBOP/DIAE (86% yield). Use of DCC/DMAP gave about 17% of racemization (97% yield)
    • 18. No racemization was observed under these conditions. This coupling can also be done with PyBOP/DIAE (86% yield). Use of DCC/DMAP gave about 17% of racemization (97% yield).
  • 51
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    • Yields: 13a: 76%, 13b: 77%, 13c: 70% und 13d: 78%. The ammonium salts are thermolabile and tend to decarboxylate
    • 19. Yields: 13a: 76%, 13b: 77%, 13c: 70% und 13d: 78%. The ammonium salts are thermolabile and tend to decarboxylate.
  • 52
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    • note
    • D = -4.6° (c = 1.04, acetone).
  • 54
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    • The acids 17a-c were purified by filtration of MTBE solutions through Celite. Traces of Pd remained in these samples
    • 22. The acids 17a-c were purified by filtration of MTBE solutions through Celite. Traces of Pd remained in these samples.


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