, -cyanoethyl)thio]benzoic acid II-91 (655 mg), HCTU (927 mg), iPr2NEt (1.98 mL) and ammonium II-78-Man (1.33 g) affording the desired benzamide II-92-Man, Nombre de publications Année Chapitre 1 : Introduction -Glycoscience et chimie combinatoire dynamique, vol.2, p.5
, 600 MHz, CDCl3): 7.60 (s, 1H, HAr), 7.47-7.38 (m, 2H, HAr), 6.99 (bs, 1H, NH), 5.34-5.26 (m, 2H, H3 +H4), vol.5
3 (CArS), MHz, vol.167, issue.150 ,
-cyanoethyl)thio]-N-[3,6-dioxa-8-(2,3,4,6-tetra-O-acetyl-?-Dglucopyranosyloxy)-oct-1-yl]benzamide II-92-Glc Prepared according to the general procedure A from 2,5-di, HOBt?H2O (36 mg), EDCI (42 ?L), iPr2NEt (158 ?L) and ammonium II-78-Glc (107 mg) affording the desired benzamide II-92-Glc, vol.2, p.5 ,
,
, MHz, vol.167, issue.150
found 698.1912. 2,5-Di(methylthio)-N-[3,6-dioxa-8-(2,3,4-tri-O-acetyl-?-L-fucopyranosyloxy)-oct-1-yl]benzamide II-96-Fuc 2,5-Di(methylthio ,
, benzamide II-96-Man
3-triazol-4-yl}methyl)-3,6-diiodopyromellitic diimide II-123-Fuc Prepared according to the general procedure C from pyromellitic diimide II-121 (50 mg, 0.092 mmol), azide II-122-Fuc (102 mg), copper iodide (4.4 mg), iPr2NEt (40 ?L) and dry DMF (2 mL) affording the desired difucoside II-123-Fuc, vol.2 ,
, 400 MHz, CDCl3): 7.78 (s, 2H, CHtriazole), 5.31 (d, J = 10.5 Hz, 2H, H2), vol.5
5 (s, 4C, CArC=O), 124.5 (s, 2C, CHtriazole), 96.4 (s, 2C, C1), MHz, vol.163, issue.100 ,
,
3-triazol-4-yl}methyl)-3,6-diiodopyromellitic diimide II-123-Man Prepared according to the general procedure C from pyromellitic diimide II-121 (200 mg, 0.367 mmol), azide II-122-Man (464 mg), copper iodide (18 mg), iPr2NEt (160 ?L) and dry DMF, vol.2, p.67 ,
, 400 MHz, CDCl3): 7.85 (s, 2H, CHtriazole), 5.36-5.24 (m, 6H, H2 + H3 +H4), vol.5
5 (s, 4C, CArC=O), 124.4 (s, 2C, CHtriazole), 97.8 (s, 2C, C1), MHz, vol.163, issue.100 ,
,
3-triazol-4-yl}methyl)-3,6-diiodopyromellitic diimide II-123-Glc Prepared according to the general procedure C from pyromellitic diimide II-121 (200 mg, 0.367 mmol), azido II-122-Glc (464 mg), copper iodide (18 mg), iPr2NEt (160 ?L) and dry DMF (10 mL) affording the diglucoside II-123-Glc, vol.2 ,
, 400 MHz, CDCl3): 7.83 (s, 2H, CHtriazole), 5.21 (dd, J = J' = 9.5 Hz, 2H, H3), 5.09 (dd, J = J' = 9
5 (s, 4C, CArC=O), 124.4 (s, 2C, CHtriazole), 101.0 (s, 2C, C1), 84.0 (s, 2C, CArI), MHz, vol.163, issue.100 ,
positive mode) m/z : calcd. for C56H70I2N8O28 : [M+2H] 2+ = 778.1189, found 778.1194. dioxaoct-8-yl 2,3,4,6-tetra-O-acetyl-?-D-glucopyranoside II-137-Glc and some impurities (32.4 g). The product was used in the next step without further purification ,
, Rf = 0.30 (Cyclohexane/EtOAc, vol.50, p.50
, At the same time, the library analysis was centrifugated (2 min, 10 000 rpm). The supernatant was collected and diluted twice with 1M HCl and analysed by HPLC (Echantillon 2, LC-A, Col-A, Grad-B) by injection of 40 ?L of the solution. The precipitate was diluted in tampon-A and 1M HCl (1:1 v/v) to afford the same volume as the reference library and analysed by HPLC (Echantillon 3, LC-A, Col-A, Grad-B) on column Col-A
mM) dissolved in tampon-A (3 mL). The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient ,
, mM Prepared according general procedure H with II-76-Fuc (F) (0.4 mM) dissolved in tampon-A (7 mL). The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient (Grad-A) by injections of the solution
, Buffer phosphate Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-B (3 mL). The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient (Grad-A) by injections of the solution, II-76-Fuc (F)
, II-76-Fuc (F), p.4
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (3 mL). The sample was placed in the fridge without stirring. The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient (Grad-A) by injections of the solution
, 4 mM) dissolved in tampon-A (3 mL). The sample was oxidized and equilibrated without stirring. The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient (Grad-A) by injections of the solution (4 ?L). -A (500 ?L) and ConA (0. 4 mM) The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient, II-76-Fuc (F) without stirring Prepared according general procedure H with II-76-Fuc (F)
, :1) dissolved in tampon-A (510 ?L) and ConA (0. 4 mM) The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient, II-76-Man + II-76-Fuc (M:F, 0.4 mM 1:1) + ConA 0.4 mM Prepared according general procedure I with M:F (0.4 mM, vol.1
, :3) dissolved in tampon-A (510 ?L) and ConA (0. 4 mM) The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient, II-76-Man + II-76-Fuc (M:F, 0.4 mM 1:3) + ConA 0.4 mM Prepared according general procedure I with M:F (0.4 mM, vol.1
, :3) dissolved in tampon-A (3 mL) and ConA (0. 1 mM) The reaction was monitored by HPLC (LC-A), on column (col-A) with gradient, II-76-Man + II-76-Fuc (M:F, 0.4 mM 1:3) + ConA 0.1 mM Prepared according general procedure I with M:F (0.4 mM, vol.1
, mM Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution, II-76-Fuc (F) 4
, mM Prepared according general procedure H with II-76-Fuc (F) (0.4 mM) dissolved in tampon-A (800 ?L). The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, II-76-Fuc (F) NaCl 500 mM Experimental section
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-D (800 ?L). The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, 2M Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-D (800 ?L). The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution, II-76-Fuc (F) NaCl
, 4 mM) dissolved in tampon-A (800 ?L). The mixture was allowed to oxidize and equilibrate without stirring. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient, II-76-Fuc (F) without stirring Prepared according general procedure H with II-76-Fuc (F)
, 4 mM) dissolved in tampon-A (800 ?L). The vial was enclosed with aluminium foil and placed in a closet. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient, II-76-Fuc (F) without light Prepared according general procedure H with II-76-Fuc (F)
, II-76-Fuc (F), p.4
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). The vial was placed in a fridge at 4°C. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, II-76-Fuc (F), p.37
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). The vial was heated at 7°C with an oil bath. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient
, II-76-Fuc (F) buffer acetate Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-C (800 ?L). The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, II-76-Fuc (F) pH = 1
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). pH was adjusted to 1 by successive addition of 1M HCl. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, II-76-Fuc (F) pH = 4
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). pH was adjusted to 4 by successive addition of 1M HCl. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). pH was adjusted to 6.4 by successive addition of 1M HCl. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). pH was adjusted to 8.4 by successive addition of 1M NaOH. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). pH was adjusted to 10 by successive addition of 1M NaOH. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, Prepared according general procedure H with II-76-Fuc (F) (4 mM) dissolved in tampon-A (800 ?L). pH was adjusted to 13 by successive addition of 1M NaOH. The reaction was monitored by HPLC (LC-B), on column (col-A) with gradient (Grad-A) by injections of the solution
, Prepared according general procedure H with II-93-Man (YM) (4 mM) dissolved in tampon-A (3 mL). The reaction was monitored by HPLC (LC-B), on column (col-B) with gradient (Grad-A) by injections of the solution, II-93-Man (YM)
, Prepared according general procedure H with II-93-Man (YM) (4 mM) dissolved in tampon-A (7 mL). The reaction was monitored by HPLC (LC-B), on column (col-B) with gradient (Grad-A) by injections of the solution, II-93-Man (YM) 0.4 mM
, The reaction was monitored by HPLC (LC-B), on column (col-B) with gradient (Grad-A) by injections of the solution, II-93-Gal (YG) 0.4 mM Prepared according general procedure H with II-93-Gal (YG) (4 mM) dissolved in tampon-A (7 mL)
, :1) dissolved in tampon-A (3 mL). The reaction was monitored by HPLC (LC-B), on column (col-B) with gradient, II-76-Man + II-93-Man (M:YM, 4 mM 1:1) Prepared according general procedure H with M:YM (4 mM, vol.1
Acetonitrile from fractions collected was removed by evaporation using a rotary evaporator and the remaining water was lyophilized affording a mixture of glycol-dyn[n]arenes. Purification of G3:G4 Prepared according general procedure J from II-76-Gal (G) (100 mg, 4 mM) purified by preparative HPLC (LC-C, Col-C, Grad-C) affording a mixture of G3:G4] (77 mg, 77%) as a slightly yellow powder. Purification of F3:F4 Prepared according general procedure J from II-76-Fuc (F) (100 mg, 4 mM) purified by preparative HPLC (LC-C, Col-C, Grad-D) affording a mixture of F3:F4 (38 mg, 38%) as a slightly yellow powder. Purification of M3:M4 Prepared according general procedure J from II-76-Man (M) (100 mg, 4 mM) purified by preparative HPLC, ]arenes by semi-preparative HPLC : Dithiol (100 mg, 4 mM) was dissolved in Tampon-A and was allowed to oxidize and equilibrate by stirring (400 rpm) in an open vial at r.t. Progress of the reaction was monitored by HPLC ,
Isothermal titration calorimetry General procedure K for ITC measurements : Lyophilized ConA (From Canavalia ensiformis Type VI, vol.7647 ,
LecA was placed into the 200-?L sample cell, at 25°C. Titrations was performed with 2-?L injections of carbohydrate ligands every 120 s. Data were fitted using the "one-site Experimental section model" using MicroCal Origin 7 software according to standard procedures. Fitted data yield the stoichiometry (n), the association constante (Ka) and the enthalpy of binding (?H) ,
, Two or three independent titrations were performed for each ligand tested. Methyl ?-D-mannopyranoside vs ConA Prepared according general procedure K with methyl ?-D-mannopyranoside (1.8 mM) and ConA, vol.12
, II-80-Man vs ConA Prepared according general procedure K with II-80-Man (1.8 mM) and ConA (0.12 mM) (See Chapter, vol.27
, M3:M4 vs ConA Prepared according general procedure K with a mixture of M3:M4 (0.2 mM, 1:1) and ConA (0.12 mM) (See Chapter, vol.27
, G3:G4 vs ConA Prepared according general procedure K with a mixture of G3:G4 (0.2 mM, 1:1) and ConA
, :1) and LecA (0.12 mM) (See Chapter, G4 (0.2 mM, vol.3
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, De nombreux glycoclusters multivalents des calixarènes, des pillararènes ou des fullerènes ont été synthétisés au sein de notre laboratoire et ont montré d'excellentes affinités pour diverses lectines grâce à leur multivalence et au « glycoside cluster effect ». Nous avons cherché à approfondir ces résultats en ajoutant un degré de dynamisme à ces molécules. Pour cela, nous avons appliqué les concepts de la chimie combinatoire dynamique où des briques moléculaires s'auto-assemblent via des liaisons réversibles pour générer à l
, Leurs propriétés ont été investiguées en chimie combinatoire dynamique et la distribution d'espèces résultant de l'équilibration a montré la formation exclusive des cyclotrimères et cyclotétramères, ou dyn[3]-et dyn[4]arènes. La répétition de l'expérience en présence d'une lectine modèle (ConA) a mené à l'amplification des homodyn, Des briques moléculaires dithiophénols glycosylés sont capables de s'auto-assembler via la formation de ponts disulfures
, Chimie combinatoire dynamique, Dynarènes, Pseudomonas aeruginosa