Category: 1159408-61-3

SDS of cas: 1159408-61-3. Today I’d like to introduce a new chemical compound, CAS is 1159408-61-3, Name is 4-(((3R,5S)-1-(1-(((2R,3R,4R,5R,6R)-3-Acetamido-4,5-diacetoxy-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-16,16-bis((3-((3-(5-(((2R,3R,4R,5R,6R)-3-acetamido-4,5-diacetoxy-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)oxy)pentanamido)propyl)amino)-3-oxopropoxy)methyl)-5,11,18-trioxo-14-oxa-6,10,17-triazanonacosan-29-oyl)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)pyrrolidin-3-yl)oxy)-4-oxobutanoic acid, Formula is C121H179N11O45, Molecular Weight is 2507.76g/mol. Because of its complex structure and huge molecular weight, this compound is rarely understood. Now let me introduce some knowledge about its synthesis.

The general reactant of this compound is β-D-Galactopyranoside, 5-hexen-1-yl 2-(acetylamino)-2-deoxy-, 3,4,6-triacetate, Reagents is Sodium periodate, Catalyst(Ruthenium dichloride), Solvent is Acetonitrile；Dichloromethane；Water, Products 5-[[3,4,6-Tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]pentanoic acid, Yield: 71%, Synthetic Methods procedure :1. Add 4.0 mol equiv. of sodium ( meta ) periodate ( 1375 g ) in water ( 3300 mL ) to a solution of reactant ( 687 g, 1.59 mol ) in DCM and MeCN ( 4000 mL 1:1 ) ., 2. Cool the mixture to 10 °C in a cold water bath and stir for 15 minutes., 3. Add ruthenium chloride ( 5.64 g, 0.027 mol ) to the cold reaction mixture, while maintaining the temperature at or below 35 °C by external cooling over the water bath., 4. Stir the reaction mixture at room temperature for 1 hour; add an additional 1 mol equiv. of sodium ( meta ) periodate ( 343 g ) and continue stirring for 1 hour at room temperature., 5. Confirm the completion of the reaction by TLC., 6. Dilute the reaction mixture with water ( 2 L ) and adjust the pH to 7.5 by adding solid NaHCO3., 7. Remove the DCM layer, wash the aqueous layer three times with DCM ( 2 L ) and discard the organic extracts., 8. Adjust the pH of aqueous layer to 3 by addition of citric acid and extract the carboxylic acid into DCM ( 3 x 4 L ) .9. Stir the organic layer with saturated brine ( 2 L ) , add 3% Na2S solution dropwise until the dark green organic phase turns to a pale yellow color.10. Separate the layers, dry the organic layer over anhydrous Na2SO4 and evaporate under reduced pressure., Transfornation (. Characterization Data include ‘s Proton NMR Spectrum : ( 400 MHz, DMSO-d 6 ) : δ 11.97 ( s, 1H, COOH ) ; 7.79 ( d, J = 9.2 Hz, 1H, NH ) ; 5.20 ( d, J = 3.4 Hz, 1H, H4 ) , 4.95 ( dd, J = 3.4, 11.2 Hz, 1H, H3 ) ; 4.48 ( d, J = 8.5 Hz, 1H, H1 ) ; 4.05-3.98 ( m, 3H, H5, H6, H6′ ) ; 3.86 ( dt, J = 8.9, 11.1 Hz, 1H, H2 ) ; 3.74-3.65 ( m, 1H, -OCH2-CH2 ) ; 3.45-3.37 ( m, 1H, -OCH2-CH2 ) ; 2.19 ( t, J = 7.0 Hz, 2H, -CH2-COOH ) ; 2.09 ( s, 3H, -COCH3 ) ; 1.99 ( s, 3H, -COCH3 ) ; 1.88 ( s, 3H, -COCH3 ) ; 1.76 ( s, 3H, -COCH3 ) ; 1.55-1.45 ( m, 4H, 2x ( -CH2 ) ) ., Carbon-13 NMR : ( 126 MHz, DMSO-d 6 ) : δ 174.4, 170.0, 169.9, 169.6, 169.3, 100.9, 70.5, 69.8, 68.4, 66.7, 61.4, 49.3, 33.2, 28.3, 22.7, 21.0, 20.5, 20.4, 20.4., Mass Spectrum: calc. for C19H29NO11: 447.1741; found 447.1743., State is offwhite solid

SDS of cas: 1159408-61-3. I’m so glad you had the patience to read the whole article, if you want know more about 1159408-61-3, you can browse my other blog.

Reference:
CAS Reaction Number: 31-355-CAS-9994399,
,CAS Method Number: 3-614-CAS-3165786

Today I’d like to introduce a new chemical compound, CAS is 1159408-61-3, Name is 4-(((3R,5S)-1-(1-(((2R,3R,4R,5R,6R)-3-Acetamido-4,5-diacetoxy-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-16,16-bis((3-((3-(5-(((2R,3R,4R,5R,6R)-3-acetamido-4,5-diacetoxy-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)oxy)pentanamido)propyl)amino)-3-oxopropoxy)methyl)-5,11,18-trioxo-14-oxa-6,10,17-triazanonacosan-29-oyl)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)pyrrolidin-3-yl)oxy)-4-oxobutanoic acid, Formula is C121H179N11O45, Molecular Weight is 2507.76g/mol. Because of its complex structure and huge molecular weight, this compound is rarely understood. Now let me introduce some knowledge about its synthesis.. HPLC of Formula: 1159408-61-3

The general reactant of this compound is 1-[(3R,5S)-5-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-1-[1,12,19,25-tetraoxo-14,14-bis[[3-oxo-3-[[3-[[1-oxo-5-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]pentyl]amino]propyl]amino]propoxy]methyl]-29-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]-16-oxa-13,20,24-triazanonacos-1-yl]-3-pyrrolidinyl] butanedioate;Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]；Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]；Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite], Reagents is Methylamine, Triethylamine trihydrofluoride, Catalyst(), Solvent is Pyridine；Water, Products RNA, (G-G-A-A-U-C-Um-Um-A-Um-A-Um-Um-Um-G-A-U-C-Cm-A-A), 3′-[O-[[(2S,4R)-1-[29-[[2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]-14,14-bis[[3-[[3-[[5-[[2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]-1-oxopentyl]amino]propyl]amino]-3-oxopropoxy]methyl]-1,12,19,25-tetraoxo-16-oxa-13,20,24-triazanonacos-1-yl]-4-hydroxy-2-pyrrolidinyl]methyl] hydrogen phosphorothioate], complex with RNA (Um-Um-G-G-A-U-Cm-A-A-A-Um-A-Um-A-A-G-A-Um-U-C-Cm-sp-Cm-sp-U) 3′-[O-[6-[2-[5-[1,3-dihydro-3,3-dimethyl-5-sulfo-1-(3-sulfopropyl)-2H-indol-2-ylidene]-1,3-pentadien-1-yl]-3-methyl-5-sulfo-1-(3-sulfopropyl)-3H-indolium-3-yl]-1-oxohexyl] hydrogen phosphorothioate], inner salt (1:1), Synthetic Methods procedure :1. Synthesize sense and antisense strands on an ABI synthesizer using commercially available 5′-O- ( 4, 4′-dimethoxytrityl ) -2′-deoxy-2′-fluoro-, 5′-O- ( 4, 4′-dimethoxytrityl ) -2′-O- ( tert-butyldimethylsilyl ) -, and 5′-O- ( 4, 4′-dimethoxytrityl ) -2′-O-methyl- 3′-O- ( 2-cyanoethyl-N, N-diisopropyl ) phosphoramidite monomers of uridine, 4-N-acetylcytidine, 6-N-benzoyladenosine, and 2-N-isobutyrylguanosine using standard solid-phase oligonucleotide synthesis and deprotection protocols., 2. Add phosphorothioate linkages by oxidation of phosphite utilizing 0.1 M DDTT in pyridine., 3. Treat the support with 40% aqueous methylamine at 45 °C for 1.5 hour., 4. Filter the suspension through a 0.2-μm filter to remove solid residues., 5. Vortex the combined filtrate with Et3N·3HF at 40 °C for 1 hour to remove tert-butyldimethylsilyl ( TBDMS ) protecting groups from the oligonucleotide., 6. Purify the ligand-conjugated and unconjugated oligonucleotides by anion-exchange high-performance liquid chromatography ( IEX-HPLC ) with TSK-Gel Super Q-5PW support using a linear gradient of 22-42% buffer B over 130 min with 50 ml/min flow rate., 7. Use buffer A as 0.02 M Na2HPO4 in 10% CH3CN ( pH 8.5 ) and buffer B as buffer A plus 1 M NaBr., 8. Combine the pure fractions, concentrate and desalt on a sartorius ultrafiltration station., 9. Confirm the integrities of the purified oligonucleotides by LC-MS and by analytical IEX HPLC., 10. Mix equimolar amounts of complementary sense and antisense strands, anneal by heating to 90 °C and cool slowly., Transfornation (.

I’m so glad you had the patience to read the whole article, if you want know more about 1159408-61-3, you can browse my other blog.. HPLC of Formula: 1159408-61-3

Reference:
CAS Reaction Number: 31-355-CAS-9994399,
,CAS Method Number: 3-614-CAS-3165786