You'll need to start with a protected hyaluronic acid-related saccharide as a starting material. Common protecting groups include acetyl (Ac), benzyl (Bn), and tert-butyldimethylsilyl (TBDMS). Protect any hydroxyl groups not involved in the glycosidic bond formation to prevent unwanted reactions.
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4-methoxyphenyl O-(β-D-glucopyranosyluronic acid)-(1->3)-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->4)-O-(β-D-glucopyranosyluronic acid)-(1->3)-2-acetamido-2-deoxy-β-D-glucopyranoside
Methyl 2-Acetamido-2-deoxy-3-O-(b-D-galactopyranosyl)- b-D-glucopyranoside
2-Piperidinecarboxylicacid,3-hydroxy-6-oxo-,(2S,3S)-(9CI)
Triethylamine
Phenol, 2,5-bis(phenylmethoxy)-, benzoate
6-O-benzyl-7,8-dideoxy-1,2:3,4-di-O-isopropylidene-L-glycero-α-D-galacto-oct-7-ynopyranose
ethyl 2-deoxy-2-oximino-3-O-pivaloyl-4,6-O-benzylidene-1-thio-α-D-glucopyranoside
Tetrahydrofuran
1-deoxy-1-α-ethenyl-2,3,5-tri-O-benzyl-L-xylose
(3R,4S,5S,6R)-4,5,6-Tris-benzyloxy-2,2-difluoro-3-hydroxy-oct-7-enoic acid ethyl ester
allyl (3,4,6-tri-O-benzyl-β-D-mannopyranosyl)-(1->2)-3,4,6-tri-O-benzyl-β-D-mannopyranoside
1-((2S,3S,5R,6R)-4-Acetyl-2,3-diisopropyl-5,6-diphenyl-piperazin-1-yl)-ethanone
dibenzyl (E)-1-propenylphosphonate
(3S,4R,5R,6S,7S)-3-(N-Acetyl-N-benzylamino)-8-O-tert-butyldiphenylsilyl-4,5,6,7,8-pentahydroxy-4,6:5,7-di-O-isopropylidene-1-(2-thiazolyl)-1-octanone
3,4-Bis-O-(p-nitrobenzoyl)-D-xylal
Benzoic acid (2R,4R,5S,6S)-4-(bis-ethylsulfanyl-methyl)-6-[(R)-(tert-butyl-diphenyl-silanyloxy)-methylcarbamoyl-methyl]-2-(4-methoxy-phenyl)-[1,3]dioxan-5-yl ester
(2S,4S,5R)-5-Formyl-4-hydroxy-pyrrolidine-1,2-dicarboxylic acid 1-benzyl ester
(2S,13S,16S,22S,25S)-5-amino-2-(4-aminobutyl)-10-{[(1S)-5-amino-1-carboxypentyl]carbamoyl}-13,22-bis(carboxymethyl)-4,12,15,19,21,24-hexaoxo-16,25-bis({[(2S)-5-oxopyrrolidin-2-yl]carbonyl}amino)-20-oxa-3,11,14,23-tetraazaoctacosane-1,28-dioic acid (non-pr
2-Cyclohexen-1-one, 4-(hydroxymethyl)-, (4R)-
N-(L-phenylalanine tert-butyl ester)-3β-acetyl-11-oxo-olean-12-en-18β-H-30-amide
TMS
methyl 2,3,4-tri-O-benzyl-5,7-O-benzylidene-β-D-glycero-D-guloseptanoside
methyl (15S)-12,16-epoxy-8,11,13-abietatrien-18-oate
(S)-3-[(4R,6S)-6-(2-Benzyloxy-ethyl)-2,2-dimethyl-[1,3]dioxan-4-yl]-1-[(4R,6S)-6-(tert-butyl-dimethyl-silanyloxymethyl)-2,2-dimethyl-[1,3]dioxan-4-yl]-propan-1-ol
misoprostol
Methyl (4,5,6S)-7-<(1S,2S,3S)-3-hydroxy-2-<(E)-(3S)-3-hydroxy-4-phenoxy-1-butenyl>-5-oxocyclopentyl>-4,5-heptadienoate
3-(3-HYDROXY-PROPYLAMINO)-PROPAN-1-OL
3-[2-(1,2-dihydroxy-2-phenyl-ethyl)-oxazol-4-yl]-3-triethylsilanyloxy-thiopropionic acid S-tert-butyl ester
[4-(3-nitrophenyl)-6-(phenoxathiin-2-yl)pyrimidin-2-yloxy]acetic acid
(2S,3S,4S,5S)-1-(tert-butoxycarbonyl)-3,4-bis-(benzyloxy)-2-((benzyloxy)methyl)-5-(3,3-dimethoxypropyl)pyrrolidine
allyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-galactopyranosyl-(1->3)-2,6-di-O-benzyl-α-D-galactopyranoside
2,3-dihydro-3-(2-hydroxyethyl)-5-phenyl-1,3-oxazin-4-one
methyl 3α,7α-diacetyl-11β-benzylamino-12α-oxo-5β,17β-cholan-24-one
(S)-2-[Methanesulfonyl-(2-nitro-benzyl)-amino]-propionic acid
(1R,2S,6S,7R,8R)-7-Benzyloxy-3,5,10,11-tetraoxa-4-thia-tricyclo[6.2.1.02,6]undecane 4,4-dioxide
2-[3,7-anhydro-1,2-dideoxy-4,5,6,8-tetra-O-benzyl-D-glycero-D-ido-octitol-1-yl]-1-(tert-butyloxycarbonyl)hydrazine
(S)-N-Boc-2-(3'-butenyl)glycine
1-{4-[3-(tert-butyldimethylsilyloxy)propyl]phenyl}-2,2,2-trifluoroethanone O-tosyl oxime
N2,N2'-(Pyridine-2,6-dicarbonyl)di(S)phenylalaninehydrazide
p-tolyl 2-O-(4-methoxybenzyl)-1-thio-β-D-fucopyranoside
NaH
Toluene
Guanosine, 2'-deoxy-N-(phenylacetyl)-, 6-(diphenylcarbamate)
Acetic acid (2R,3S,4R,5R,6S)-4,5-diacetoxy-6-methyl-2-phenylselanyl-tetrahydro-pyran-3-yl ester
benzyl 4-O-allyl-2,3-di-O-benzyl-β-D-xylopyranoside
ethyl (2R,3S)-2-tert-butoxycarbonylamino-3-(4-(2-methoxyethoxymethoxy)phenyl)-3-methoxypropanoate
2,5(1H,3H)-Quinolinedione, 4,6,7,8-tetrahydro-4-(4-methoxyphenyl)-1,7,7-trimethyl-
C16H21N3O4S
(3-O-allyloxycarbonyl-2-deoxy-4,6-O-isopropylidene-2-phthalimido-β-D-glucopyranosyl)-(1->4)-(6-O-levulinoyl-2,3-di-O-p-toluoyl-α-D-glucopyranosyl) trichloroacetimidate
N-[N-(tert-butoxycarbonyl)-2-(2-hydroxyethyl)-L-prolyl]-D-leucine benzyl ester
benzyl 6α-ethynyl-6β-(trifluoromethanesulfonato)penicillinate
Cuprous iodide
(2RS,5SR,6SR)-benzyl 4,7-dioxo-6-phenoxyacetamido-1,3-diazabicyclo<3.2.0>heptane-2-carboxylate
O2-(Nα-acetyl-L-phenylalanine)methyl 1-(pyrrolidin-1-yl)diazen-1-ium-1,2-diolate
compound 1
Compound 2
