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DOI: 10.1055/s-2003-40342
Synthesis of Fluorine-Containing Core-2 Tetrasaccharides
Publication History
Publication Date:
30 June 2003 (online)
Abstract
Synthesis of core-2 branched tetrasaccharides 1-3, in which a fluorine atom was substituted at the 3 or 4-position of galactose residues is described. Glycosyl imidates 13, and 19 were prepared and used to provide novel glycosyl disaccharide donors 15 and 21, respectively. Coupling of acceptor 7 with glycosyl bromide 6 provides a disaccharide that was further converted into disaccharide acceptor 8. The coupling of acceptor 14 with donor 13, and acceptor 20 with donor 19 provided disaccharides that were converted to disaccharide donors 15 and 21, respectively. Regioselective glycosylation of acceptors 8, and 16 with donors 9, 15, and 21 provided tetrasaccharides 10, 17, and 22 respectively, which were systematically deprotected to targets 1-3.
Key words
tetrasaccharides - galactose residues - core-2 O-linked glycoproteins
-
1a
Capon C.Laboisse CL.Wieruszrski J.-M.Maoret JJ.Auheron C.Fournet B. J. Biol. Chem. 1992, 267: 19248 -
1b
Capon C.Wieruszeski J.-M.Lemoine J.Byrd JC.Leffler H.Kim YS. J. Biol. Chem. 1997, 272: 31957 -
1c
Brockhausen I. Biochem. Biophys. Acta 1999, 1473: 67 -
1d
Rosen SD.Bertozzi CR. Curr. Opin. Cell Biol. 1994, 6: 663 -
1e
Brocke C.Kunz H. Bioorg. Med. Chem. 2002, 10: 3085 -
2a
Dwek RA. Chem. Rev. 1996, 96: 683 -
2b
Lee YC.Lee TR. Acc. Chem. Res. 1995, 28: 321 -
2c
Varki A. Glycobiology 1993, 3: 97 -
3a
Nicolaou KC.Mitchell HJ. Angew. Chem. Int. Ed. 2001, 40: 1576 -
3b
Sanders WJ.Manning DD.Koeller KM.Kiessling LL. Tetrahedron 1997, 53: 16391 -
3c
Wong C.-H. Acc. Chem. Res. 1999, 32: 376 -
3d
Gege C.Vogel J.Bendas G.Rothe U.Schmidt RR. Chem.-Eur. J. 2000, 6: 111 -
3e
Herzner H.Reipen T.Schultz M.Kunz H. Chem. Rev. 2000, 100: 4495 -
3f
Lergenmuler M.Ito Y.Ogawa T. Tetrahedron 1998, 54: 1381 -
3g
Kanie O.Barresi A.Ding Y.Otter Y.Forsberg LS.Ernst B.Hindsgaul O. Angew. Chem., Int. Ed. Engl. 1995, 34: 2720 -
3h
Jain RK.Huang B.-G.Chandrasekaran EV.Matta KL. Chem. Commun. 1997, 23 -
3i
Huang B.-G.Jain RK.Locke RD.Alderfer JL.Tabaczynski WA.Matta KL. Tetrahedron Lett. 2000, 41: 6279 -
3j
Xia J.Alderfer JL.Piskorz CF.Matta KL. Chem.-Eur. J. 2000, 6: 3442 -
3k
Xia J.Alderfer JL.Piskorz CF.Matta KL. Chem.-Eur. J. 2001, 7: 356 -
4a
O’Hagan D.Rzepa HS. Chem. Commun. 1997, 645 -
4b
Howard JAK.Hoy VJ.O’Hagan D.Smith GT. Tetrahedron 1996, 53: 12613 -
5a
Sarkar AK.Rostand KS.Jain RK.Matta KL.Esko JD. J. Biol. Chem. 1997, 272: 25608 -
5b
Woynarowska B.Skrincosky DM.Haag A.Sharma M.Matta KL.Bernacki RJ. J. Biol. Chem. 1994, 269: 22797 -
5c
Sarkar AK.Fritz TA.Taylor WH.Esko JD. Proc. Natl. Acad. Sci. USA 1995, 92: 3323 -
5d
Goon S.Bertozzi CR. J. Carbohydr. Chem. 2002, 21: 943 - 6
Card PJ.Reddy CS. J. Org. Chem. 1983, 48: 4734 - 7
Kovac P.Yeh HJ.Glaudemans CP. Carbohydr. Res. 1985, 140: 277 - 8
Jain RK.Piskorz CF.Chandrasekaran EV.Matta KL. Carbohydr. Res. 1995, 271: 247 -
9a
Koch K.Chambers RJ. Carbohydr. Res. 1993, 241: 295 -
9b
Dax K.Albert M.Ortner J.Paul BJ. Carbohydr. Res. 2000, 327: 47 - 10 Physical data: Compound 1: Rf = 0.5 (i-C3H9OH-HOAc-H2O,
3:1:1); 1H NMR (D2O, DQF-COSY and
ROESY, 400 MHz): δ = 7.50-7.20 (m, 5
H, ArH), 4.99 (d, 1 H, J
1,2 = 3.4 Hz,
HA-1), 4.72 (d, 1 H, J
gem = 12.6
Hz, PhCHAO, ABq), 4.61 (dq, 1 H, HB-3), 4.58
(d, 1 H, J
1,2 = 7.6
Hz, HB-1), 4.53 (d, 1 H, J
gem = 12.4
Hz, PhCHBO, ABq), 4.49 (d, 1 H, J
1,2 = 8.6
Hz, HC-1), 4.48 (d, 1 H, J
1,2 = 7.6
Hz, HD-1), 4.35 (dd, 1 H, HA-2), 4.23 (d,
1 H, J = 2.8 Hz, HA-4),
4.20 (dd, 1 H, HB-4), 4.15 (dd, 1 H, HA-5),
4.07 (dd, 1 H, HA-6b), 4.04 (dd, 1 H, HA-3),
4.01 (dd, 1 H), 3.94 (d, 1 H, J = 2.7
Hz, HD-4), 3.90-3.50 (m, 15 H, HB-2,
HD-2), 2.31 (s, 3 H, Ac), 2.21 (s, 3 H, Ac); 13C
NMR (D2O, 100.6 MHz): δ = 175.76 (C=O), 175.52
(C=O), 138.24, 130.07, 129.96, 129.71, 105.12 (d, 3
J
C-F = 11.3 Hz),
104.21, 102.76, 97.62, 94.10 (d, 1
J
C-F = 183.4 Hz),
79.90, 78.48, 76.65, 76.06, 75.02, 74.96, 73.84, 73.80, 72.27, 70.91,
70.86, 70.77, 70.59 (d, 2
J
C-F = 18.6
Hz), 69.97 (d, 2
J
C-F =
20.4 Hz), 62.31, 61.94, 61.89, 61.40, 56.39, 49.83, 23.58 (NAc),
23.25 (NAc). ESIMS (negative mode) Calcd for C35H53O20N2F
(m/z)[M = 840].
Found: 839.5[M]-,
875.5 [M + Cl]-.
Compound 2: 1 H NMR
(D2O, DQF-COSY, TOCSY and ROESY, 400 MHz): δ = 7.50-7.00
(m, 5 H, ArH), 5.00 (d, 1 H, J
1,2 = 3.2
Hz, HA-1), 4.87 (dd, 1 H, J = 2.8
Hz, 2
J
H-F = 52.0
Hz, HD-4), 4.73 (d, 1 H, J
gem = 12.3 Hz,
PhCHAO, ABq), 4.59 (d, 1 H, J
1,2 = 7.6
Hz, HD-1), 4.58 (d, 1 H, J
1,2 = 8.0
Hz, HC-1), 4.53 (d, 1 H, J
gem = 12.4
Hz, PhCHBO, ABq), 4.46 (d, 1 H, J
1,2 = 7.8
Hz, HB-1), 4.34 (dd, 1 H, HA-2), 4.25 (d,
1 H, J = 2.8 Hz, HA-4),
4.16 (dd, 1 H, HA-5), 4.10 (dd, 1 H, HA-6b),
4.08 (dd, 1 H, HA-3), 4.02 (dd, 1 H), 3.92-3.80
(m, 6 H, HC-4), 3.81 (dd, 1 H, HD-3), 3.80-3.50
(m, 10 H, HD-2, HA-6a, HC-3, HD-2,
HC-2), 2.31 (s, 3 H, Ac), 2.29 (s, 3 H, Ac); 13C
NMR (D2O, 100.6 MHz): δ = 175.80 (C=O),
175.65 (C=O), 129.60, 129.40, 129.30, 105.90, 104.10, 102.85,
97.85, 79.80 (d, 1
J
C-F = 178.5
Hz), 76.10 (d, 2
J
C-F = 50.6
Hz), 73.90, 72.15 (d, 2
J
C-F = 50.9
Hz), 71.50, 71.23, 70.25, 70.00, 62.25, 61.23, 56.20, 49.95, 23.50 (NAc),
23.20 (NAc). 19F NMR (CDCl3, 376.4
MHz): δ = -172.95 ppm. ESIMS
(negative mode) Calcd for C35H53O20N2F
(m/z) [M = 840].
Found: 839.6 [M]-. Compound 3: Rf = 0.5 (i-C3H9OH-HOAc-H2O,
3:1:1). 1 H NMR (D2O, DQF-COSY and
ROESY, 400 MHz): δ = 7.50-7.20 (m, 5
H, ArH), 4.99 (d, 1 H, J
1,2 = 3.4
Hz, HA-1), 4.73 (d, 1 H, J
gem = 12.6
Hz, PhCHAO, ABq), 4.61 (dq, 1 H, J = 2.8
Hz, J = 9.6 Hz, 2
J
H-F = 68.0 Hz, HD-3),
4.58 (d, 1 H,
J
1,2 = 7.6
Hz, HD-1), 4.55 (d, 1 H, J
1,2 = 8.6
Hz, HC-1), 4.52 (d, 1 H, J
gem = 12.5
Hz, PhCHBO), 4.46 (d, 1 H, J
1,2 = 7.6
Hz, HB-1), 4.33 (dd, 1 H, HA-2), 4.24 (d,
1 H, J = 2.8 Hz, HA-4), 4.03
(d, 1 H, J = 3.2 Hz, HD-4),
4.16 (m, 1 H, HA-5), 4.07 (dd, 1 H, HA-6b),
4.04 (dd, 1 H, HA-3), 4.00 (dd, 1 H, HC-3),
3.91 (d, 1 H, J = 2.8 Hz, HB-4),
3.91-3.72 (m, 9 H), 3.64 (m, 2 H, HC-5, HB-3),
3.52 (dd, 1 H, HB-2), 2.31 (s, 3 H, Ac), 2.28 (s, 3 H,
Ac); 13C NMR (D2O, 100.6
MHz): δ = 175.77 (C=O), 175.54 (C=O),
138.22, 130.07, 129.95, 129.71, 105.89, 103.41 (d, 3
J
C-F = 12.7 Hz),
102.76, 97.58, 94.08 (d, 1
J
C-F = 183.9
Hz), 79.81, 78.26, 76.15 (d, 2
J
C-F = 17.8Hz),
75.32 (d, 3
J
C-F = 6.8
Hz), 73.79, 73.75, 71.93, 71.05, 70.99, 70.86, 70.73, 70.13, 69.89,
68.15, 67.97, 62.29, 61.99, 61.97, 61.32, 56.43, 49.87, 23.57 (NAc),
23.26 (NAc). ESIMS (negative mode) Calcd for C35H53O20N2F
(m/z) [M = 840]. Found:
839.5 [M]-, 875.5 [M + Cl]-