(2R,3S,4R,5R)-1-(3-((5-(4-Fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-2,3,4,5,6-pentahydroxyhexan-1-one

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Figure

CAS 1672658-93-3
C24 H25 F O6 S, 460.52
D-Glucopyranose, 1-C-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-
str1
str1
CAS 1809403-04-0
C24 H25 F O6 S, 460.52
D-Glucose, 1-C-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-
WO2017/93949

Figure

(2R,3S,4R,5R)-1-(3-((5-(4-Fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-2,3,4,5,6-pentahydroxyhexan-1-one    12

From the FT-IR spectra of 12 contain a signal at 1674 cm–1, this signal is strongly indicative of a carbonyl ketone being present in 12

In 13C NMR and HMBC correlations spectra, the chemical shift at 199.75 ppm was observed. Analysis of the NMR data  confirmed that the structure of 12 is a ring-opened keto form

Synthesis of (2R,3S,4R,5R)-1-(3-((5-(4-Fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-2,3,4,5,6-pentahydroxyhexan-1-one 12

title compound 12 (84.23% yield) and having 99.4% purity by HPLC;
DSC: 160.84–166.44 °C;
Mass: m/z 459 (M+–H);
IR (KBr, cm–1): 3313, 2982, 1674.7, 1601, 1507.5, 1232.7;
1H NMR (600 MHz, DMSO-d6) δ 7.87 (s, 1H), 7.80 (dd, J = 1.8 Hz, 1H), 7.61–7.58 (m, 2H), 7.33 (d, J = 8.4 Hz, 1H), 7.29 (d, J = 3.6 Hz, 1H), 7.21–7.18 (m, 2H), 6.84 (d, J = 3.6 Hz, 1H), 5.17 (dd, J = 3.6, 3.0 Hz, 1H), 5.02 (d, J = 6.6 Hz, 1H), 4.57 (d, J = 4.8 Hz, 1H), 4.43–4.39 (m, 3H), 4.22 (s, 2H), 4.02–4.01 (m, 1H), 3.53–3.51 (m, 3H), 3.38–3.37 (m, 1H), 2.35 (s, 3H);
13C NMR (101 MHz, DMSO-d6) δ 199.7, 162.6, 160.2, 142.8, 142.1, 140.5, 138.8, 133.3, 130.5, 130.4, 130.4, 129.3, 127.2, 127.0, 127.0, 126.7, 123.5, 116.0, 115.8, 75.2, 72.3, 71.8, 71.3, 63.2, 33.2, 19.2.
HRMS (ESI): calcd m/zfor [C24H25FO6S + Na]+ = 483.1248, found m/z 483.1244.
Org. Process Res. Dev., Article ASAP
DOI: 10.1021/acs.oprd.7b00281

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