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    Π‘ΠΈΠ½Ρ‚Π΅Π· Ρ– ΠΏΡ€ΠΎΡ‚ΠΈΠΏΡƒΡ…Π»ΠΈΠ½Π½Π° Π°ΠΊΡ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ 2-(4-aΠΌΡ–Π½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ–Π»ΡΡƒΠ»ΡŒΡ„Π°Π½Ρ–Π»)-N-(5-R-Π±Π΅Π½Π·ΠΈΠ»Ρ‚Ρ–Π°Π·ΠΎΠ»-2-Ρ–Π»)-Π°Ρ†Π΅Ρ‚Π°ΠΌΡ–Π΄Ρ–Π²

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    3-Aryl-2-chloropropanals 2a-h have been prepared by the reaction of arenediazonium chlorides 1a-h with acroleinΒ in the conditions of Meerwein arylation (water-acetone, CuCl2 as a catalyst). These aldehydes react with thioureaΒ by refluxing in ethanol to obtain 2-amino-5-R-benzyl-1,3-thiazoles 3a-h (R = 2-Cl, 3-Cl, 4-Cl, 3-CF3, 2,4-Cl2, 2,5-Cl2,Β 3,4-Cl2, 3-Cl-4-Me) with high yields. The resulting 2-aminothiazoles were acylated with chloroacetic acid chloridesΒ to form 2-chloro-N-(5-aryl-1,3-thiazol-2-yl)acetamides 4a-h with the yields of 68-91%. By the reaction of compoundsΒ 4a-h with 4-amino-5-methyl-4H-1,2,4-triazole-3-thiole 5 a series of novel 2-(4-amino-5-methyl-4H-[1,2,4]triazol-3-ylsulfanyl)-N-(5-R-benzylthiazol-2-yl)-acetamides 6a-h (71-86%) have been synthesized. These compounds haveΒ been evaluated for their anticancer activity against 60 cancer lines in the concentration of 10 ΞΌM. The human tumourΒ cell lines were derived from nine different cancer types: leukemia, melanoma, lung, colon, CNS, ovarian, renal, prostate,Β and breast cancers. Among all the derivatives, compounds 6a-c, 6e,f (R = 2-Cl, 3-Cl, 4-Cl, 2,4-Cl2, 2,5-Cl2) haveΒ been found to be active and have a high selectivity in relation to melanoma, while 2-(4-amino-5-methyl-4H-[1,2,4]Β triazol-3-ylsulfanyl)-N-[5-(2-chlorobenzyl)-thiazol-2-yl]-acetamide (6a) and 2-(4-amino-5-methyl-4H-[1,2,4]triazol-3-ylsulfanyl)-N-[5-(3,4-dichlorobenzyl)-thiazol-2-yl]-acetamide (6g) are active in relation to breast cancer.ВзаимодСйствиСм Π°Ρ€Π΅Π½Π΄ΠΈΠ°Π·ΠΎΠ½ΠΈΠ΅Π²Ρ‹Ρ… солСй 1a-h с Π°ΠΊΡ€ΠΎΠ»Π΅ΠΈΠ½ΠΎΠΌ Π² Π²ΠΎΠ΄Π½ΠΎ-Π°Ρ†Π΅Ρ‚ΠΎΠ½ΠΎΠ²ΠΎΠΉ срСдС Π² присутствии ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€Π° Ρ…Π»ΠΎΡ€ΠΈΠ΄Π° ΠΌΠ΅Π΄ΠΈ(II) (условия Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ ΠœΠ΅Π΅Ρ€Π²Π΅ΠΉΠ½Π°) синтСзированы 3-Π°Ρ€ΠΈΠ»-2-Ρ…Π»ΠΎΡ€ΠΎΠΏΡ€ΠΎΠΏΠ°Π½Π°Π»ΠΈ 2a-h. Π­Ρ‚ΠΈΒ Π°Π»ΡŒΠ΄Π΅Π³ΠΈΠ΄Ρ‹ Ρ€Π΅Π°Π³ΠΈΡ€ΡƒΡŽΡ‚ с Ρ‚ΠΈΠΎΠΌΠΎΡ‡Π΅Π²ΠΈΠ½ΠΎΠΉ ΠΏΡ€ΠΈ Π½Π°Π³Ρ€Π΅Π²Π°Π½ΠΈΠΈ Π² спиртС, образуя 2-Π°ΠΌΠΈΠ½ΠΎ-5-R-Π±Π΅Π½Π·ΠΈΠ»-1,3-Ρ‚ΠΈΠ°Π·ΠΎΠ»Ρ‹Β 3a-h (R = 2-Cl, 3-Cl, 4-Cl, 3-CF3, 2,4-Cl2, 2,5-Cl2, 3,4-Cl2, 3-Cl-4-Me) с высокими Π²Ρ‹Ρ…ΠΎΠ΄Π°ΠΌΠΈ. АцилированиСм Π°ΠΌΠΈΠ½ΠΎΡ‚ΠΈΠ°Π·ΠΎΠ»ΠΎΠ² 3a-h Ρ…Π»ΠΎΡ€Π°Π½Π³ΠΈΠ΄Ρ€ΠΈΠ΄ΠΎΠΌ хлоруксусной кислоты Π² присутствии триэтиламина ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ 2-Ρ…Π»ΠΎΡ€-N-(5-Π°Ρ€ΠΈΠ»-1,3-Ρ‚ΠΈΠ°Π·ΠΎΠ»-2-ΠΈΠ»)Π°Ρ†Π΅Ρ‚Π°ΠΌΠΈΠ΄Ρ‹ 4a-h с Π²Ρ‹Ρ…ΠΎΠ΄Π°ΠΌΠΈ 68-91%. ΠšΠΈΠΏΡΡ‡Π΅Π½ΠΈΠ΅ΠΌ послСдних с эквимолярным количСством 4-Π°ΠΌΠΈΠ½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ‚ΠΈΠΎΠ»Π° 5 Π½Π° протяТСнии 4 часов Π² присутствии триэтиламина синтСзировали ΡΠ΅Ρ€ΠΈΡŽ Π½ΠΎΠ²Ρ‹Ρ… 2-(4-Π°ΠΌΠΈΠ½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-ΠΈΠ»ΡΡƒΠ»ΡŒΡ„Π°Π½ΠΈΠ»)-N-(5-R-Π±Π΅Π½Π·ΠΈΠ»Ρ‚ΠΈΠ°Π·ΠΎΠ»-2-ΠΈΠ»)-Π°Ρ†Π΅Ρ‚Π°ΠΌΠΈΠ΄ΠΎΠ² 6a–h, Π²Ρ‹Ρ…ΠΎΠ΄Ρ‹ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… ΡΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‚ 71-86%. Π˜Π·ΡƒΡ‡Π΅Π½Π° противораковая Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… соСдинСний. ИсслСдованиС ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠΉ активности соСдинСний ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π½Π°Β 60 линиях Ρ€Π°ΠΊΠΎΠ²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π² ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΈ 10 мкМ. Π›ΠΈΠ½ΠΈΠΈ ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π±Ρ‹Π»ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ из дСвяти Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… Ρ‚ΠΈΠΏΠΎΠ² Ρ€Π°ΠΊΠ°: Π»Π΅ΠΉΠΊΠ΅ΠΌΠΈΠΈ, ΠΌΠ΅Π»Π°Π½ΠΎΠΌΡ‹, Ρ€Π°ΠΊΠ° Π»Π΅Π³ΠΊΠΈΡ…, толстой кишки, ЦНБ, яичников, ΠΏΠΎΡ‡Π΅ΠΊ, простаты, ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. УстановлСно, Ρ‡Ρ‚ΠΎ соСдинСния 6a-c, 6e,f (R = 2-Cl, 3-Cl, 4-Cl, 2,4-Cl2, 2,5-Cl2) Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹ ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π»ΠΈΠ½ΠΈΠΉ ΠΌΠ΅Π»Π°Π½ΠΎΠΌΡ‹, Π° 2-(4-Π°ΠΌΠΈΠ½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4Н-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-ΠΈΠ»ΡΡƒΠ»ΡŒΡ„Π°Π½ΠΈΠ»)-N-[5-(2-Ρ…Π»ΠΎΡ€Π±Π΅Π½Π·ΠΈΠ»)Ρ‚ΠΈΠ°Π·ΠΎΠ»-2-ΠΈΠ»]Π°Ρ†Π΅Ρ‚Π°ΠΌΠΈΠ΄ (6Π°) ΠΈ 2-(4-Π°ΠΌΠΈΠ½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4Н-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-ΠΈΠ»ΡΡƒΠ»ΡŒΡ„Π°Π½ΠΈΠ»)-N-[5-(3,4-Π΄ΠΈΡ…Π»ΠΎΡ€Π±Π΅Π½Π·ΠΈΠ»)Ρ‚ΠΈΠ°Π·ΠΎΠ»-2-ΠΈΠ»]Π°Ρ†Π΅Ρ‚Π°ΠΌΠΈΠ΄ (6g) – ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π»ΠΈΠ½ΠΈΠΉ Ρ€Π°ΠΊΠ° ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹.Π’Π·Π°Ρ”ΠΌΠΎΠ΄Ρ–Ρ”ΡŽ Π°Ρ€Π΅Π½Π΄Ρ–Π°Π·ΠΎΠ½Ρ–Ρ”Π²ΠΈΡ… солСй 1a-h Π· Π°ΠΊΡ€ΠΎΠ»Π΅Ρ—Π½ΠΎΠΌ Ρƒ Π²ΠΎΠ΄Π½ΠΎ-Π°Ρ†Π΅Ρ‚ΠΎΠ½ΠΎΠ²ΠΎΠΌΡƒ сСрСдовищі Π·Π° наявності ΠΊΠ°Ρ‚Π°Π»Ρ–Π·Π°Ρ‚ΠΎΡ€Π° Ρ…Π»ΠΎΡ€ΠΈΠ΄Ρƒ ΠΌΡ–Π΄Ρ–(II) (ΡƒΠΌΠΎΠ²ΠΈ Ρ€Π΅Π°ΠΊΡ†Ρ–Ρ— ΠœΠ΅Ρ”Ρ€Π²Π΅ΠΉΠ½Π°) синтСзовано 3-Π°Ρ€ΠΈΠ»-2-Ρ…Π»ΠΎΡ€ΠΎΠΏΡ€ΠΎΠΏΠ°Π½Π°Π»Ρ– 2a-h. Π¦Ρ– Π°Π»ΡŒΠ΄Π΅Π³Ρ–Π΄ΠΈ Ρ€Π΅Π°Π³ΡƒΡŽΡ‚ΡŒ Π· Ρ‚Ρ–ΠΎΡΠ΅Ρ‡ΠΎΠ²ΠΈΠ½ΠΎΡŽ ΠΏΡ€ΠΈ Π½Π°Π³Ρ€Ρ–Π²Π°Π½Π½Ρ– Ρƒ спирті, ΡƒΡ‚Π²ΠΎΡ€ΡŽΡŽΡ‡ΠΈ 2-Π°ΠΌΡ–Π½ΠΎ-5-R-Π±Π΅Π½Π·ΠΈΠ»-1,3-Ρ‚Ρ–Π°Π·ΠΎΠ»ΠΈ 3a-hΒ (R = 2-Cl, 3-Cl, 4-Cl, 3-CF3, 2,4-Cl2, 2,5-Cl2, 3,4-Cl2, 3-Cl-4-Me) Π· високими Π²ΠΈΡ…ΠΎΠ΄Π°ΠΌΠΈ. ΠΡ†ΠΈΠ»ΡŽΠ²Π°Π½Π½ΡΠΌ Π°ΠΌΡ–Π½ΠΎΡ‚Ρ–Π°Π·ΠΎΠ»Ρ–Π² 3a-h Ρ…Π»ΠΎΡ€Π°Π½Π³Ρ–Π΄Ρ€ΠΈΠ΄ΠΎΠΌ Ρ…Π»ΠΎΡ€ΠΎΡ†Ρ‚ΠΎΠ²ΠΎΡ— кислоти Π·Π° наявності Ρ‚Ρ€ΠΈΠ΅Ρ‚ΠΈΠ»Π°ΠΌΡ–Π½Ρƒ ΠΎΠ΄Π΅Ρ€ΠΆΠ°Π½ΠΎ 2-Ρ…Π»ΠΎΡ€-N-(5-Π°Ρ€ΠΈΠ»-1,3-Ρ‚Ρ–Π°Π·ΠΎΠ»-2-Ρ–Π»)Π°Ρ†Π΅Ρ‚Π°ΠΌΡ–Π΄ΠΈ 4a-h Π· Π²ΠΈΡ…ΠΎΠ΄Π°ΠΌΠΈ 68-91%. ΠšΠΈΠΏβ€™ΡΡ‚Ρ–Π½Π½ΡΠΌ Ρ†ΠΈΡ… Ρ…Π»ΠΎΡ€Π°Ρ†Π΅Ρ‚Π°ΠΌΡ–Π΄Ρ–Π² Π· Π΅ΠΊΠ²Ρ–ΠΌΠΎΠ»ΡΡ€Π½ΠΎΡŽ ΠΊΡ–Π»ΡŒΠΊΡ–ΡΡ‚ΡŽΒ 4-Π°ΠΌΡ–Π½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ‚Ρ–ΠΎΠ»Ρƒ 5 протягом 4 Π³ΠΎΠ΄ΠΈΠ½ Ρƒ присутності Ρ‚Ρ€ΠΈΠ΅Ρ‚ΠΈΠ»Π°ΠΌΡ–Π½Ρƒ синтСзували ΡΠ΅Ρ€Ρ–ΡŽ Π½ΠΎΠ²ΠΈΡ… 2-(4-Π°ΠΌΡ–Π½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ–Π»ΡΡƒΠ»ΡŒΡ„Π°Π½Ρ–Π»)-N-(5-R-Π±Π΅Π½Π·ΠΈΠ»Ρ‚Ρ–Π°Π·ΠΎΠ»-2-Ρ–Π»)-Π°Ρ†Π΅Ρ‚Π°ΠΌΡ–Π΄Ρ–Π²Β 6a-h, Π²ΠΈΡ…ΠΎΠ΄ΠΈ яких ΡΠΊΠ»Π°Π΄Π°ΡŽΡ‚ΡŒ 71-86%. Π’ΠΈΠ²Ρ‡Π΅Π½Π° ΠΏΡ€ΠΎΡ‚ΠΈΡ€Π°ΠΊΠΎΠ²Π° Π°ΠΊΡ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ ΠΎΠ΄Π΅Ρ€ΠΆΠ°Π½ΠΈΡ… сполук. ДослідТували протипухлинну Π°ΠΊΡ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ Ρ‰ΠΎΠ΄ΠΎ 60 Ρ€Π°ΠΊΠΎΠ²ΠΈΡ… Π»Ρ–Π½Ρ–ΠΉ Π² ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†Ρ–Ρ— 10 мкМ. Π›Ρ–Π½Ρ–Ρ— ΠΏΡƒΡ…Π»ΠΈΠ½Π½ΠΈΡ… ΠΊΠ»Ρ–Ρ‚ΠΈΠ½ Π»ΡŽΠ΄ΠΈΠ½ΠΈΒ Π±ΡƒΠ»ΠΈ ΠΎΡ‚Ρ€ΠΈΠΌΠ°Π½Ρ– Π· дСв’яти Ρ€Ρ–Π·Π½ΠΈΡ… Ρ‚ΠΈΠΏΡ–Π² Ρ€Π°ΠΊΡƒ: Π»Π΅ΠΉΠΊΠ΅ΠΌΡ–Ρ—, ΠΌΠ΅Π»Π°Π½ΠΎΠΌΠΈ, Ρ€Π°ΠΊΡƒ Π»Π΅Π³Π΅Π½Ρ–Π², товстої кишки, ЦНБ, яєчників, Π½ΠΈΡ€ΠΎΠΊ, простати, ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΡ— Π·Π°Π»ΠΎΠ·ΠΈ. ВстановлСно, Ρ‰ΠΎ сполуки 6a-c, 6e,f (R = 2-Cl, 3-Cl, 4-Cl, 2,4-Cl2,Β 2,5-Cl2) Π½Π°ΠΉΠ°ΠΊΡ‚ΠΈΠ²Π½Ρ–ΡˆΡ– відносно Π»Ρ–Π½Ρ–ΠΉ ΠΌΠ΅Π»Π°Π½ΠΎΠΌΠΈ, Π° 2-(4-Π°ΠΌΡ–Π½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4Н-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ–Π»ΡΡƒΠ»ΡŒΡ„Π°Π½Ρ–Π»)-N-[5-(2-Ρ…Π»ΠΎΡ€ΠΎΠ±Π΅Π½Π·ΠΈΠ»)Ρ‚Ρ–Π°Π·ΠΎΠ»-2-Ρ–Π»]Π°Ρ†Π΅Ρ‚Π°ΠΌΡ–Π΄ (6Π°) Ρ– 2-(4-Π°ΠΌΡ–Π½ΠΎ-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4Н-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ–Π»ΡΡƒΠ»ΡŒΡ„Π°Π½Ρ–Π»)-N-[5-(3,4-Π΄ΠΈΡ…Π»ΠΎΡ€ΠΎΠ±Π΅Π½Π·ΠΈΠ»)Ρ‚Ρ–Π°Π·ΠΎΠ»-2-Ρ–Π»]Π°Ρ†Π΅Ρ‚Π°ΠΌΡ–Π΄ (6g) – відносно Π»Ρ–Π½Ρ–ΠΉ Ρ€Π°ΠΊΡƒ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΡ— Π·Π°Π»ΠΎΠ·ΠΈ

    Π“Π΅Ρ‚Π΅Ρ€ΠΎΡ†ΠΈΠΊΠ»Ρ–Π·Π°Ρ†Ρ–Ρ— Π½Π° основі Π΅Ρ‚ΠΈΠ» 1-Π°Ρ€ΠΈΠ»-4-(Π±Ρ€ΠΎΠΌΠ°Ρ†Π΅Ρ‚ΠΈΠ»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1Π½-ΠΏΡ–Ρ€Π°Π·ΠΎΠ»- 3-карбоксилатів

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    Ethyl 1-aryl-5-methyl-4-(2-R-1,3-thiazol-4-yl)-1H-pyrazole-3-carboxylates, ethyl 1-aryl-4-(imidazo[1,2-a]pyridin-2-yl)-5-methyl-1H-pyrazole-3-carboxylates, ethyl 1-aryl-4-(imidazo[2,1-b][1,3]thiazol-6-yl)-5-methyl-1H-pyrazole-3-carboxylates, ethyl 1-aryl-4-{3-aryl(hetaryl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-6-yl}-5-methyl-1H-pyrazole-3-carboxylate have been synthesized by heterocyclisations of ethyl 1-aryl-4-(bromoacetyl)-5-methyl-1H-pyrazole-3-carboxylates with thiobenzamide, 1-(6-methylpyridin-2-yl)thiourea or 1-carbamidoylthiourea, pyridin-2-amine, 1,3-thiazol-2-amine and 4-amino-5-aryl(hetaryl)-2,4-dihydro-3H-1,2,4-triazole-3-thiones, respectively.ГСтСроциклизациями этил 1-Π°Ρ€ΠΈΠ»-4-(Π±Ρ€ΠΎΠΌΠ°Ρ†Π΅Ρ‚ΠΈΠ»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1Н-ΠΏΠΈΡ€Π°Π·ΠΎΠ»-3-карбоксилатов с Ρ‚ΠΈΠΎΠ±Π΅Π½Π·Π°ΠΌΠΈΠ΄ΠΎΠΌ, (6-ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½-2-ΠΈΠ»)Ρ‚ΠΈΠΎΠΌΠΎΡ‡Π΅Π²ΠΈΠ½ΠΎΠΉ ΠΈΠ»ΠΈ Π³ΡƒΠ°Π½ΠΈΠ΄ΠΈΠ»Ρ‚ΠΈΠΎΠΌΠΎΡ‡Π΅Π²ΠΈΠ½ΠΎΠΉ), 2-Π°ΠΌΠΈΠ½ΠΎΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½ΠΎΠΌ, 2-Π°ΠΌΠΈΠ½ΠΎΡ‚ΠΈΠ°Π·ΠΎΠ»ΠΎΠΌ ΠΈ 4-Π°ΠΌΠΈΠ½ΠΎ-5-Π°Ρ€ΠΈΠ»(Π³Π΅Ρ‚Π°Ρ€ΠΈΠ»)-2,4-Π΄ΠΈΠ³ΠΈΠ΄Ρ€ΠΎ-3Н-1,2,4-Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ‚ΠΈΠΎΠ½Π°ΠΌΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ этил 1-Π°Ρ€ΠΈΠ»-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4-(2-R-1,3-Ρ‚ΠΈΠ°Π·ΠΎΠ»-4-ΠΈΠ»)-1H-ΠΏΠΈΡ€Π°Π·ΠΎΠ»-3-карбоксилаты, этил 1-Π°Ρ€ΠΈΠ»-4-(ΠΈΠΌΠΈΠ΄Π°Π·ΠΎΠ»ΠΎ[1,2-a]ΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½-2-ΠΈΠ»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1H-ΠΏΠΈΡ€Π°Π·ΠΎΠ»-3-карбоксилаты, этил 1-Π°Ρ€ΠΈΠ»-4-(ΠΈΠΌΠΈΠ΄Π°Π·ΠΎ[2,1-b][1,3]Ρ‚ΠΈΠ°Π·ΠΎΠ»-6-ΠΈΠ»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1Н-ΠΏΠΈΡ€Π°Π·ΠΎΠ»-3-карбоксилаты ΠΈ этил 1-Π°Ρ€ΠΈΠ»-4-{3-Π°Ρ€ΠΈΠ»(Π³Π΅Ρ‚Π°Ρ€ΠΈΠ»)-7H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»[3,4-b][1,3,4]Ρ‚ΠΈΠ°Π΄ΠΈΠ°Π·ΠΈΠ½-6-ΠΈΠ»)}-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1H-ΠΏΠΈΡ€Π°Π·ΠΎΠ»-3-карбоксилаты соотвСтствСнно.ГСтСроциклізаціями Π΅Ρ‚ΠΈΠ» 1-Π°Ρ€ΠΈΠ»-4-(Π±Ρ€ΠΎΠΌΠ°Ρ†Π΅Ρ‚ΠΈΠ»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1Н-ΠΏΡ–Ρ€Π°Π·ΠΎΠ»-3-карбоксилатів Π· Ρ‚Ρ–ΠΎΠ±Π΅Π½Π·Π°ΠΌΡ–Π΄ΠΎΠΌ, (6-ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΡ–Ρ€ΠΈΠ΄ΠΈΠ½-2-Ρ–Π»)Ρ‚Ρ–ΠΎΡΠ΅Ρ‡ΠΎΠ²ΠΈΠ½ΠΎΡŽ Π°Π±ΠΎ Π³ΡƒΠ°Π½Ρ–Π΄ΠΈΠ»Ρ‚Ρ–ΠΎΡΠ΅Ρ‡ΠΎΠ²ΠΈΠ½ΠΎΡŽ, 2-Π°ΠΌΡ–Π½ΠΎΠΏΡ–Ρ€ΠΈΠ΄ΠΈΠ½ΠΎΠΌ, 2-Π°ΠΌΡ–Π½ΠΎΡ‚Ρ–Π°Π·ΠΎΠ»ΠΎΠΌ Ρ‚Π° 4-Π°ΠΌΡ–Π½ΠΎ-5-Π°Ρ€ΠΈΠ»(Π³Π΅Ρ‚Π°Ρ€ΠΈΠ»)-2,4-Π΄ΠΈΠ³Ρ–Π΄Ρ€ΠΎ-3Н-1,2,4-Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»-3-Ρ‚Ρ–ΠΎΠ½Π°ΠΌΠΈ синтСзовано Π΅Ρ‚ΠΈΠ» 1-Π°Ρ€ΠΈΠ»-5-ΠΌΠ΅Ρ‚ΠΈΠ»-4-(2-R-1,3-Ρ‚Ρ–Π°Π·ΠΎΠ»-4-Ρ–Π»)-1H-ΠΏΡ–Ρ€Π°Π·ΠΎΠ»-3-карбоксилати, Π΅Ρ‚ΠΈΠ» 1-Π°Ρ€ΠΈΠ»-4-(Ρ–ΠΌΡ–Π΄Π°Π·ΠΎ[1,2-a]ΠΏΡ–Ρ€ΠΈΠ΄ΠΈΠ½-2-Ρ–Π»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1H-ΠΏΡ–Ρ€Π°Π·ΠΎΠ»-3-карбоксилати, Π΅Ρ‚ΠΈΠ» 1-Π°Ρ€ΠΈΠ»-4-(Ρ–ΠΌΡ–Π΄Π°Π·ΠΎ[2,1-b][1,3]Ρ‚Ρ–Π°Π·ΠΎΠ»-6-Ρ–Π»)-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1Н-ΠΏΡ–Ρ€Π°Π·ΠΎΠ»-3-карбоксилати Ρ‚Π° Π΅Ρ‚ΠΈΠ» 1-Π°Ρ€ΠΈΠ»-4-{3-Π°Ρ€ΠΈΠ»(Π³Π΅Ρ‚Π°Ρ€ΠΈΠ»)-7H-[1,2,4]Ρ‚Ρ€ΠΈΠ°Π·ΠΎΠ»ΠΎ[3,4-b][1,3,4]Ρ‚Ρ–Π°Π΄Ρ–Π°Π·ΠΈΠ½-6-Ρ–Π»)}-5-ΠΌΠ΅Ρ‚ΠΈΠ»-1H-ΠΏΡ–Ρ€Π°Π·ΠΎΠ»- 3-карбоксилати Π²Ρ–Π΄ΠΏΠΎΠ²Ρ–Π΄Π½ΠΎ

    Apoptosis induction in human leukemia cells by novel 2-amino-5-benzylthiazole derivatives

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    Derivatives of 2-amino-5-benzylthiazole are heterocyclic pharmacophores that exhibit different pharmacological activities including anticancer action. The mechanisms of such action of these compounds are not clear. The aim of the present study was to investigate apoptosis induction, particularly DNA damage in human leukemia cells, by the novel synthesized thiazole derivatives β€’ 2,8-dimethyl-7-(3-trifluoromethyl-benzyl)pyrazolo[4,3-e]thiazolo[3,2-a]pyrimidin-4(2H)-one (compound 1) and 7-benzyl-8-methyl-2-propylpyrazolo[4,3-e]thiazolo[3,2-a]pyrimidin-4(2H)-one (compound 2). Western-blot analysis, DNA comet assay in alkaline conditions, diphenylamine DNA fragmentation assay, agarose gel retardation, and methyl green DNA intercalation assays were used to study the effects of the studied compounds in human leukemia cells. These compounds induced PARP1 and caspase 3 cleavage in the leukemia cells, also increased the level of pro-apoptotic Bim protein and the mitochondrion-specific EndoG nuclease, and decreased the level of the anti-apoptotic Bcl-2 protein. They caused DNA single-strand breaks and DNA fragmentation in the leukemia cells without direct DNA binding or DNA intercalation. Thus, novel 2-amino-5-benzylthiazole derivatives may be promising agents for apoptosis induction in the targeted human leukemia cells

    Effects of new derivatives of 2-amino-5-benzylthiazole of genotoxicity and acute toxicity in Allium bioassays

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    We have found that new derivatives of 2-amino-5-benzylthiazole possess cytotoxic action towards human tumor cells (Finiuk et al., Biopolym. Cell, 2017; Finiuk et al., Ukr. Biochem. J., 2018). A release of the chemotherapeutic drugs into the environment may cause adverse effects towards ecosystems. To promote further these derivatives as potential anticancer agents, it was necessary to evaluate their genotoxicity and acute toxiΒ­city, namely in plants that have an important trophic level in ecosystems. To do that, we used towards plant bioassays for new derivatives of N-(5-benzyl-1,3-thiazol-2-yl)-3,5-dimethyl-1-benzofuran-2-carboxamide (compound 1) and 2,8-dimethyl-7-(3-trifluoromethyl-benzyl)pyrazolo[4,3-e]thiazolo[3,2-a]pyrimidin-4-one (compound 2). Allium cepa ana-telophase assay was applied to monitor the genotoxicity of the studied compounds. Besides, the acute toxic effects such as inhibition of cell division, seed germination and growth of Allium roots were estimated. The compound 1 (10 mM) in concentration equal to the IC50 for tumor cells, and compound 2 in 1 mM (1Β΄ concentration, equal to the IC50 for tumor cells) and 10 mM (10Β΄ concentration) did not possess acute toxicity towards Allium cepa. A significant inhibition of root growth and seed germination effects were detected at using the compound 1 only in dose that is 10 times higher than the IC50 for tumor cells. The ana-telophase assay did not reveal the genotoxic effect of the compounds 1 (10 mM) and 2 (1 and 10 mM). The compounds 1 (10 mM) and 2 (1 and 10 mM) did not affect the mitotic and phase (prophase, metaphase, anaphase, telophase) indices. A commercial anticancer drug Doxorubicin (0.1 and 1 mM) possessed a significant inhibitory effect on root growth and seed germination, mitotic index and enhanced a level of chromosomal aberrations in Allium cepa. The compound 1 at 10 mM and compound 2 at 1 mM and 10 mM did not possess a significant acute toxicity (inhibition of cell division, seed germination and growth of Allium roots), did not demonstrated the genotoxic effects (induction of chromosomal aberrations) in Allium bioassay. These results give primary evidence about a possibility of using the synthetic 2-amino-5-benzylthiazole derivatives – compounds 1 and 2 – as novel antineoplastic agents that will have no negative side effects in the treated plant organism. Additional experiments should be performed in order to evaluate the adverse effects of new derivatives of 2-amino-5-benzylthiazole in a vide spectrum of the concentrations for the prediction of environmental toxicity and genotoxicity of chemicals

    Evaluation of antiproliferative activity of pyrazolothiazolopyrimidine derivatives

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    The research aim was to test cytotoxic effects in vitro of seven novel pyrazolothiazolopyrimidine derivatives in targeting several lines of tumor and pseudo-normal mammalian cells. We demonstrated that cytotoxic effects of these derivatives depended on the tissue origin of targeted cells. Leukemia cells were found to be the most sensitive to the action of compounds 2 and 7. Compound 2 demonstrated approximately two times higher toxicity towards the multidrug-resistant sub-line of HL-60/ADR cells compared to the Doxorubicin effect. Antiproliferative action of compounds 2 and 7 dropped in the order: leukemia > melanoma > hepatocarcinoma > glioblastoma > colon carcinoma > breast and ovarian carcinoma cells. These compounds were less toxic than Doxorubicin towards the non-tumor cells. The novel pyrazolothiazolopyrimidine, compound 2, demonstrated high toxicity towards human leukemia and, of special importance, towards multidrug-resistant leukemia cells, and low toxicity towards pseudo-normal cells
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