2 article(s) from Chaudhury, Aritra
- Full Research Paper
- Published 17 May 2018
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Figure 1: The tetrasaccharides associated with the pneumonicoccal serogroup 6.
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Figure 2: Retrosynthetic analysis.
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Scheme 1: Preparation of D-glucosyl donor 6. Reaction conditions: a) NapBr/PMBCl, NaH, DMF, rt, 12 h, 90% (6a...
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Scheme 2: Preparation of L-rhamnosyl acceptor 5. Reaction conditions: a) Py, BzCl, rt, 12 h, 99%; b) DDQ, DCM...
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Scheme 3: Preparation of ribitol acceptor 7. Reaction conditions: a) Me2C(OMe)2, pTSA, CH3COCH3, rt, 81%; b) ...
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Scheme 4: Stepwise synthesis of tetrasaccharide 1. Reaction conditions: a) TMSOTf, DCM/Et2O (5:1), 4 Å MS, −3...
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Scheme 5: One-pot synthesis of tetrasaccharide 1. Reaction conditions: a) TMSOTf, 4 Å MS, DCM/Et2O (4:1), N2,...
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- Full Research Paper
- Published 01 Jul 2014
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Graphical Abstract
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Figure 1: Repeating unit of the A-band polysaccharide of P. aeruginosa.
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Scheme 1: Preparation of the monomeric building blocks; reagents and conditions: i) Pyr., BzCl, 0 °C–rt; ii) ...
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Figure 2: Retrosynthetic analysis.
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Scheme 2: Sequential stepwise synthesis of the trisaccharide; reagents and conditions: i) TMSOTf, DCM, molecu...
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Scheme 3: Synthesis of the trisaccharide by sequential one-pot glycosylation reactions; reagents and conditio...
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Scheme 4: Synthesis of the target trisaccharide via global deoxygenation strategy; reagents and conditions: i...
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