- Synthesis of O-prenylated and O-geranylated derivatives of 5-benzylidene2,4-thiazolidinediones and evaluation of their free radical scavenging activity as well as effect on some phase II antioxidant/detoxifying enzymes
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A series of 5-arylidene-2,4-thiazolidinediones and its geranyloxy or prenyloxy derivative were synthesized and studied for their radical scavenging activity using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Their comparable scavenging activities were expr
- Hossain, Sk. Ugir,Bhattacharya, Sudin
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Read Online
- NOVEL SUGAR-DERIVED GELATOR
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There is provided a novel gelator containing a sugar derivative. A gelator including a compound of Formula (1) or Formula (2): wherein each of R1 and R3 is independently a linear or branched alkyl group having a carbon atom number of 1 to 20, a cyclic C3-20 alkyl group, or a linear or branched alkenyl group having a carbon atom number of 2 to 20, n is 0 or an integer of 1 to 4, R2 is a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and R4 and R5 are each a hydroxy group.
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Paragraph 0133; 0134; 0141
(2015/02/18)
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- Nelumal A, the active principle from Ligularia nelumbifolia, is a novel farnesoid X receptor agonist
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A series of 29 oxyprenylated and azoprenylated phenylpropanoids were chemically synthesized and tested in transfected cultured HepG2 cells by means of the dual-luciferase assay as farnesoid X receptor (FXR) agonists, using the endogenous ligand chenodeoxy
- Epifano, Francesco,Genovese, Salvatore,James Squires,Gray, Matthew A.
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scheme or table
p. 3130 - 3135
(2012/06/04)
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- Convenient synthesis of (E)-methyl O-alkylferulates: Formal synthesis of O-geranylconiferyl alcohol, a metabolite of Fagara rhetza
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A convenient two step stereoselective synthesis of (E)-methyl O-alkylferulate 5a-c is described from vanillin 1. Reaction of vanillin 1 with allyl-, prenyl- or geranyl- bromide 2a-c has afforded alkyl ethers 3a-c which on reaction with phosphorane 4, under microwave irradiation, gives (E)-methyl O-alkylferulates 5a-c in high yield. In an alternative approach vanillin 1 on reaction with phosphorane 4 provides (E)-methyl ferulate 6 which on reaction with the corresponding bromides 2a-c gives (E)-methyl O-alkylferulates 5a-c.
- Mahajan, Rajesh P.,Patil, Shamkant L.,Mali, Raghao S.
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p. 328 - 331
(2007/10/03)
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