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Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (2): 46-52.doi: 10.3969/j.issn.0253-2417.2019.02.007

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Synthesis and Antiviral Activity Evaluation of Dehydroabietic Acid Amide Derived 3, 4-Dihydropyrimidinthiones

Yunlong LUO1,2,Minggui SHEN2,*(),Zhaosheng CAI1,Shibin SHANG2,Zhanqian SONG2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
    2. School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
  • Received:2018-12-30 Online:2019-04-25 Published:2019-05-08
  • Contact: Minggui SHEN E-mail:shenminggui@sina.com
  • Supported by:
    国家自然科学基金青年基金项目(31500487);中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2016QB014)

Abstract:

Dehydroabietic acid chloride was prepared via the reaction of dehydroabietic acid and thionylchloride, dehydroabietic acid acylthiosemicarbazide was synthesized by thiosemicarbazone and dehydroabietic acid chloride, followed by the reaction of dehydroabietic acid acylthiosemicarbazide, aromatic aldehydes with ethyl acetate to obtain ten dehydroabietic acid amide derived 3, 4-dihydropyrimidinones: 4-phenyl-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3a), 4-(4-methoxyphenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-di-hydropyrimidine-2-thione (3b), 4-(2-methoxyphenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimi-dine-2-thione (3c), 4-(4-methylphenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3d), 4-(4-bromophenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3e), 4-(4-p-tri-fluoromethylphenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3f). 4-(4-chlorophen-yl)-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3g), 4-(2, 6-dichlorophenyl)- 6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3h), 4-(2-nitrophenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-dihydropyrimidine-2-thione (3i), 4-(3-nitrophenyl)-6-methyl-1-dehydroabietic acid amide-3, 4-di-hydropyrimidine-2-thione (3j).The target compounds were characterized by FT-IR, MS, 1H NMR and 13C NMR. The cytotoxicity of these 3, 4-dihydropyrimidinone derivatives (compounds 3a-3j) were tested with monkey embryonic kidney cells (MA-104 cells). The antiviral activities against the Herpes simplex virus type Ⅰ (HSV-1) of these derivatives were further evaluated with methyl thiazolyl tetrazolium(MTT) method. The results indicated that the cytotoxicity of these derivatives kept in a low level, compounds 3a, 3b, 3d, 3e, 3h, 3i and 3j showed lower cytotoxicity than the drug ribavirin; compound 3j performed better inhibitory activity of HSV-1(50% inhibitory concentration(IC50) 0.465 g/L, selective index(SI)12.18) which was similar to ribavirin (IC50=0.156 g/L, SI=12.6), and the other compounds showed weak inhibitory activity of HSV-1.

Key words: rosin, dehydroabietic acid, 3, 4-dihydropyrimidinone, antiviral activity

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