中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(2-异丙基-5-甲基苯氧基)乙酸 | 2-isopropyl-5-methylphenoxyacetic acid | 5333-40-4 | C12H16O3 | 208.257 |
—— | methyl 2-(2-isopropyl-5-methylphenoxy)acetate | 111304-01-9 | C13H18O3 | 222.284 |
—— | 2-isopropyl-5-methylphenoxyacetate | 65101-72-6 | C14H20O3 | 236.311 |
百里酚 | 5-methyl-2-(1-methylethyl)phenol | 89-83-8 | C10H14O | 150.221 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-isopropyl-5-methylphenoxy-N-benzalamino acetamide | 111303-67-4 | C19H22N2O2 | 310.396 |
—— | 2-[5-methyl-2-(propan-2-yl)phenoxy]-N'-[(E)-phenylmethylidene]acetohydrazide | 111303-67-4 | C19H22N2O2 | 310.4 |
—— | 2-[5-Methyl-2-(1-methylethyl)phenoxy]acetic acid 2-[(4-hydroxyphenyl)methylene]hydrazide | 111303-68-5 | C19H22N2O3 | 326.395 |
—— | N-[(4-methoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-69-6 | C20H24N2O3 | 340.422 |
—— | 2-(2-isopropyl-5-methylphenoxy)-N'-(4-methoxybenzylidene)acetohydrazide | 111303-69-6 | C20H24N2O3 | 340.4 |
—— | N-[(4-chlorophenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-73-2 | C19H21ClN2O2 | 344.841 |
—— | N-[(2-hydroxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 99000-09-6 | C19H22N2O3 | 326.395 |
—— | N-[(4-hydroxy-3-methoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 105043-75-2 | C20H24N2O4 | 356.422 |
—— | N-[(3-hydroxy-4-methoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-79-8 | C20H24N2O4 | 356.422 |
—— | N-[(E)-(3-hydroxy-4-methoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | —— | C20H24N2O4 | 356.4 |
—— | N-[(2-chlorophenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-72-1 | C19H21ClN2O2 | 344.841 |
—— | N'-[(E)-(2-chlorophenyl)methylidene]-2-[5-methyl-2-(propan-2-yl)phenoxy]acetohydrazide | —— | C19H21ClN2O2 | 344.8 |
—— | N-[[4-(dimethylamino)phenyl]methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 101632-46-6 | C21H27N3O2 | 353.464 |
—— | N-[(E)-[4-(dimethylamino)phenyl]methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | —— | C21H27N3O2 | 353.5 |
—— | N-[(3,4-dimethoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-70-9 | C21H26N2O4 | 370.448 |
—— | N-[(E)-(3,4-dimethoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | —— | C21H26N2O4 | 370.4 |
—— | N'-(4-nitrobenzylidene)-2-(2-isopropyl-5-methylphenoxy) acetohydrazide | 99004-38-3 | C19H21N3O4 | 355.393 |
—— | N-[(2,4-dichlorophenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-74-3 | C19H20Cl2N2O2 | 379.286 |
—— | N'-(2,4-dichlorobenzylidene)-2-(2-isopropyl-5-methylphenoxy)acetohydrazide | —— | C19H20Cl2N2O2 | 379.3 |
—— | N-[(2-hydroxy-3-methoxyphenyl)methylideneamino]-2-(5-methyl-2-propan-2-ylphenoxy)acetamide | 111303-78-7 | C20H24N2O4 | 356.422 |
—— | 2-(5-methyl-2-propan-2-ylphenoxy)-N-[(3,4,5-trimethoxyphenyl)methylideneamino]acetamide | 111303-80-1 | C22H28N2O5 | 400.475 |
—— | 2-[5-methyl-2-(propan-2-yl)phenoxy]-N'-[(E)-(3,4,5-trimethoxyphenyl)methylidene]acetohydrazide | —— | C22H28N2O5 | 400.5 |
—— | N'-(2-nitrobenzylidene)-2-(2-isopropyl-5-methylphenoxy) acetohydrazide | 111303-77-6 | C19H21N3O4 | 355.393 |
In the present study, different derivatives of thymol (1) viz. hydrazide (2), oxadiazole thiol (3), triazole thione (4), hydrazones (5-7), and β-lactams (8-10) were synthesized. All synthesized compounds were identified and characterized using elemental analysis, UV-Visible, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and IR spectroscopic techniques. Synthesized thymol derivatives were evaluated for antifungal potential against phytopathogenic fungi Fusarium moniliforme, Rhizoctonia solani, and Dreschlera maydis of maize in comparison to recommended standards in terms of percent inhibition and ED50 values. Thymol was more effective as compared to its derivatives against all three tested fungi. Hydrazones (5-7) and β-lactams (8-10), having m-NO<sub>2</sub> substituted phenyl ring (6, 9), were less effective as compared to o-NO<sub>2</sub> and p-NO<sub>2</sub> analogs against F. moniliforme and R. solani, however, the reverse trend was observed against D. maydis. Thymol and its derivatives were also tested for insecticidal activity against stored grain (chickpea) insect Callosobruchus chinensis and various parameters viz. egg laying, adult emergence, and grain damage were recorded and compared. Compounds having oxadiazole thiol (3) and triazole thione (4) moiety showed promising effects against insect C. chinensis.
A library of 1,2,3-triazole-incorporated thymol-1,3,4-oxadiazole derivatives (6–18) hasbeen synthesized and tested for anticancer and antimicrobial activities. Compounds 7, 8, 9, 10, and 11 exhibited significant antiproliferative activity. Among these active derivatives, compound 2-(4-((5-((2-isopropyl-5-methylphenoxy)methyl)-1,3,4-oxadiazol-2-ylthio)methyl)-1H-1,2,3-triazol-1-yl)phenol (9) was the best compound against all three tested cell lines, MCF-7 (IC50 1.1 μM), HCT-116 (IC50 2.6 μM), and HepG2 (IC50 1.4 μM). Compound 9 was found to be better than the standard drugs, doxorubicin and 5-fluorouracil. These compounds showed anticancer activity through thymidylate synthase inhibition as they displayed significant TS inhibitory activity with IC50 in the range 1.95–4.24 μM, whereas the standard drug, Pemetrexed, showed IC50 7.26 μM. The antimicrobial results showed that some of the compounds (6, 7, 9, 16, and 17) exhibited good inhibition on Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The molecular docking and simulation studies supported the anticancer and antimicrobial data. It can be concluded that the synthesized 1,2,3-triazole tethered thymol-1,3,4-oxadiazole conjugates have both antiproliferative and antimicrobial potential.