Tanshinone compounds, preparation method and use thereof
Technology of a compound, tanshinone, applied in the field of medicinal chemistry
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example 1
[0077] Example 1, 1,6,6-trimethyl-6,7,8,9,10,11-hexahydro-10,11-dioxophenanthrene[1,2-b]furan-2-carbaldehyde ( Tan-001)
[0078]
[0079] Add tanshinone Ⅱ A (2.94g, 19mmol) and 50ml dimethylformamide (DMF) into the reaction bottle, stir and add 7ml phosphorus oxychloride dropwise at room temperature, react at 70-80°C for 2 hours, then pour the reaction solution into 750ml In ice water with yellow precipitate, filtered, washed with water, and dried to obtain the crude product, the crude product was obtained by silica gel column chromatography, and the yield was 67%. 1 H-NMR (300MHz, (CDCl 3 )), δ:9.86(s,1H),8.80(d,J=6.3Hz,1H),7.71(d,J=6.3Hz,1H),3.21(m,2H),2.65(s,3H), 1.78-1.82(m,2H),1.65-1.69(m,2H),1.42(s,6H).
example 2
[0080] Example two, 2-bromo-10,11-dioxo-1,6,6-trimethyl-6,7,8,9,10,11-hexahydrophenanthrene[1,2-b]furan ( Tan-002)
[0081]
[0082] Add tanshinone Ⅱ A (1.47g, 5mmol) and 80ml of acetic acid into the reaction flask, slowly add dropwise the solution of N-bromosuccinimide NBS (1.07g, 6mmol) in 25ml of acetic acid, react at room temperature for 6 hours, add water, Extract with dichloromethane, combine the extracts, wash with water successively, wash with aqueous sodium sulfite solution, wash with saturated aqueous sodium chloride solution, dry over anhydrous sodium sulfate, and use silica gel column chromatography to obtain a red solid, 1 H-NMR (300MHz, (CDCl 3 )),δ:7.68(d,J=7.9Hz,1H),7.53(d,J=7.9Hz,1H),3.19(m,2H),2.21(s,3H),1.77-1.83(m,2H ), 1.64-1.71(m,2H), 1.31(s,6H).
example 3
[0083] Example three, 2-chloro-1,6,6-trimethyl-6,7,8,9,10,11-hexahydro-10,11-dioxophenanthrene[1,2-b]furan ( Tan-003)
[0084]
[0085] The reaction is the same as in Example 2, and NBS is replaced by N-chlorosuccinimide (NCS) to obtain the target product, 1 H-NMR (300MHz, (CDCl 3 ),δ:7.69(d,J=7.2Hz,1H),7.56(d,J=7.2Hz,1H),3.19(m,2H),2.23(s,3H),1.77-1.85(m,2H) ,1.64-1.75(m,2H),1.31(s,6H).
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