Glycogen phosphorylase inhibitor bile acid derivatives containing biocleavable dipeptide, its preparation method and medical application
A pharmacy and compound technology, which is applied in the field of glycogen phosphorylase inhibitor bile acid derivatives, can solve the problems of high homology, lack of liver glycogen phosphorylase selectivity, and clinical application limitations.
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Embodiment 1
[0044] (S)-2-tert-butoxycarbonylamino-3-(4-fluorophenyl)-1-(4-hydroxypiperidin-1-yl)acetone
[0045] Dissolve BOC-4-fluoro-L-phenylalanine (15.6g, 55.1mmol) in anhydrous dichloromethane (160mL), add HATU (25g, 66.1mmol) and DIPEA (8.54g, 66.1 mmol), stirred at room temperature for 10 minutes, then added 4-hydroxypiperidine (6.7 g, 66.1 mmol), stirred at room temperature overnight. The reaction solution was washed with saturated brine, anhydrous Na 2 SO 4 It was dried, filtered and concentrated, and the residue was separated by reverse phase HPLC to give a white solid (50mg, 29.8%). Flash column chromatography (petroleum ether / ethyl acetate l / l, V / V) gave a white solid (19.7 g, 98%).
[0046] ESI-MS m / z: 367.2[M+H] + .
[0047] 1 H NMR (CDCl 3 , 400MHz): 7.14-7.18(m, 2H), 6.95-7.00(m, 2H), 5.47(dd, J=8.8, 14.8Hz, 1H), 4.83(dd, J=6.0, 13.6Hz, 1H), 3.81-4.01(m, 2H), 3.46-3.62(m, 1H), 3.15-3.33(m, 1H), 2.89-3.00(m, 2H), 1.73-1.83(m, 2H), 1.42-1.52(m , 2H), 1.40(s, 9H).
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Embodiment 2
[0075] (S)-2-[(S)-2-tert-butoxycarbonylamino-3-phenylpropanylamino]-6-(benzyloxyamido)hexanoic acid methyl ester
[0076] In a similar manner to the preparation of (S)-2-(2-tert-butoxycarbonylamino-3-methyl-n-butyramide)propionic acid methyl ester, lysine methyl ester hydrochloride (2.49 g, 7.6 mmlo) Reaction with N-tert-butoxycarbonyl-L-phenylalanine (2 g, 7.6 mmol) gave a white solid (3 g, 73%).
[0077] ESI-MS m / z: 542.3[M+H] + .
[0078] 1 H-NMR (CDCl 3 , 400MHz): 7.38(d, J=4.4Hz, 4H), 7.29-7.35(m, 5H), 7.20-7.27(m, 3H), 6.49(d, J=7.2Hz, 1H), 5.11(dd, J=12.4, 16.4Hz, 2H), 4.54-4.59(m, 1H), 4.35-4.40(m, 1H), 3.72(s, 3H), 3.16(dd, J=6.0, 12.0Hz, 2H), 3.07 (t, J=6.0Hz, 2H), 1.77-1.88(m, 1H), 1.64-1.71(m, 1H), 1.49-1.56(m, 2H), 1.40(s, 9H), 1.27-1.36(m , 2H).
[0079] (S)-2-[(S)-2-tert-butoxycarbonylamino-3-phenylpropanylamino]-6-(benzyloxyamido)hexanoic acid
[0080] According to the similar method of preparing (S)-2-(2-tert-butoxycarbonylamino-3-methyl n-butyramide) ...
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