1,3-dihydro-1-oxo-2H-isobenzazole compounds as well as preparation method and use thereof
A technology for oxoisoindole and compounds, which is applied in the field of 1,3-dihydro-1-oxo-2H-isoindole compounds, their preparation and application, and can solve the problems of low bioavailability, difficulty in mass production, and half-life Short and other questions
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Embodiment 1
[0042] Preparation of 3-(6-(3-guanidinobenzamido)-1-oxoisoindol-2-yl)-3-phenylpropionate hydrochloride (I-1) and trifluoroacetate
[0043]
[0044] step( a ): Add 2-formyl-5-nitrobenzoic acid ( 4 ) 10.0 mmol, β-phenyl-β-alanine methyl ester 12.0 mmol and methanol 80ml, stirred at room temperature for 2.0h, then slowly added NaBH under ice-water bath cooling 4 10.0 mmol, insulated and stirred for reaction (the reaction process was monitored by TLC), after the reaction was completed, the solvent was evaporated under reduced pressure, 20 ml of acetic acid was added to the residue, and the reaction was incubated at 80°C for 40 min, and 100 ml of deionized water was added to the reaction bottle, and the precipitated Solid, the filter cake was washed with aqueous sodium carbonate solution and dried to obtain 3-(6-nitro-1-oxoisoindol-2-yl)-3-phenylpropionic acid methyl ester with a yield of 90.0%, ESI- MS ( m / z , +Q): 341.0 [M+H] + ;
[0045] step( b ): Add 10.0 mmol of ...
Embodiment 2
[0050] Preparation of 3-(6-(4-guanidinobenzamido)-1-oxoisoindol-2-yl)-3-phenylpropion hydrochloride (I-2)
[0051]
[0052] Operation process is the same as embodiment 1, just step ( c ) in m-guanidinobenzoic acid hydrochloride is replaced by p-guanidinobenzoic acid hydrochloride, and the condensing agent 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride is used DCC was substituted to obtain 3-(6-(4-guanidinobenzamido)-1-oxoisoindol-2-yl)-3-phenylpropionate hydrochloride with a yield of 74.0%, 1 H NMR (400MHz, DMSO-d 6 ) δ: 12.42(brs, 1H, COOH), 11.01(brs, 1H, HCl), 10.64(s, 1H, CONH), 8.26(d, 1H, J =1.6Hz, Ar-H), 8.11(d, 2H, J =8.4Hz, Ar-H), 7.98(dd, 1H, J 1 =1.6Hz, J 2 =8.0Hz, Ar-H), 7.97(brs, 4H, NH 2 C(NH)NH), 7.52(d, 1H, J =8.0Hz, Ar-H), 7.33(d, 2H, J =8.4Hz, Ar-H), 7.40-7.27(m, 5H, Ar-H), 5.77(t, 1H, J =8.0Hz, CH), 4.52(d, 1H, J =17.6Hz, ArCH 2 ), 4.14(d, 1H, J =17.6Hz, ArCH 2 ), 3.13-3.02(m, 2H, CH 2 COOH); ESI-MS ( m / z ): 458.15 [M-Cl]...
Embodiment 3
[0054] 3-[6-[3-[(4,5-dihydro-1 H Preparation of -imidazol-2-yl)amino]benzamido]-1-oxoisoindol-2-yl]-3-phenylpropion hydrochloride (I-3)
[0055]
[0056] Operation process is the same as embodiment 1, just step ( c ) in m-guanidinobenzoic acid hydrochloride with 3-[(4,5-dihydro-1 H -imidazol-2-yl) amino] benzoic acid hydrochloride instead, condensing agent 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride replaces with DCC, obtains 3-[ 6-[3-[(4,5-dihydro-1 H -Imidazol-2-yl)amino]benzamido]-1-oxoisoindol-2-yl]-3-phenylpropion hydrochloride, yield 85.0%, 1 H NMR (400MHz, DMSO-d 6 ) δ: 12.44(brs, 1H, COOH), 10.89(s, 1H, HCl), 10.78(s, 1H, CONH), 8.58(s, 2H, NHCNH), 8.25(d, 1H, J =1.2Hz, Ar-H), 7.95(dd, 1H, J 1 =1.2Hz, J 2 =8.4Hz, Ar-H), 7.88-7.86(m, 2H, Ar-H), 7.59(t, 1H, J =8.0Hz, Ar-H), 7.53(d, 1H, J =8.0Hz, Ar-H), 7.45(d, 2H, J =8.0Hz, Ar-H), 7.41-7.28(m, 5H, Ar-H), 5.76(t, 1H, J =8.0Hz, CH), 4.50(d, 1H, J =17.6Hz, ArCH 2 ), 4.12(d, 1H, J =17.6H...
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