

2021 № 9 (651) p. 875–970
Table of Contents
Review Articles
PORPHYRINS WITH PHENOLIC FRAGMENTS AT THE PERIPHERY OF THE MACROCYCLE AS PERSPECTIVE ANTIOXIDANTS, CYTOPROTECTORS AND HEAVY METAL SCAVENGERS |
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Margarita N. Kolyada, Victoria P. Osipova, Nadezhda T. Berberova, Dmitry S. Shpakovsky, Elena R. Milaeva | 875-888 |

CYCLIC ISOTHIOUREA IN DRUG DESIGN |
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Evgeniya V. Nurieva, Alexander A. Alexeev, Olga N. Zefirova | 889-899 |

METAL OXIDES IN MULTICOMPONENT SYNTHESIS OF HETEROCYCLES |
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Ольга В. Федорова, Юлия A. Титова, Ирина Г. Овчинникова | 900-904 |

Heterocycles in Focus
RECENT DEVELOPMENTS IN THE SYNTHESIS OF PIPERAZINES |
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Seyed Sajad Sajadikhah, Mahmoud Nassiri | 905-907 |

SYNTHESIS OF CYCLIC AZA-PEROXIDES |
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Yulia Yu. Belyakova, Peter S. Radulov | 908-910 |

Original Papers
SYNTHESIS AND ANALGESIC ACTIVITY OF 1-[(1,2,3-TRIAZOL-1-YL)METHYL]QUINOLIZINES BASED ON THE ALKALOID LUPININE |
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Жангельды С. Нурмаганбетов, Виктор А. Савельев, Юрий В. Гатилов, Оралгазы A. Нуркенов, Роза Б. Сейдахметова, Зарина Т. Шульгау, Гулим К. Мукушева, Серик Д. Фазылов, Эльвира Э. Шульц | 911-919 |

SYNTHESIS, CYTOTOXICITY, AND α-GLUCOSIDASE INHIBITORY ACTIVITY OF TRITERPENIC AND SITOSTEROL TETRAZOLE DERIVATIVES |
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Anastasiya V. Petrova, Alexander I. Poptsov, Ha Thi Thu Nguyen, Tuyen Van Nguyen, Elmira F. Khusnutdinova, Denis A. Babkov, Oxana B. Kazakova | 920-928 |

HIGHLY DIASTEREOSELECTIVE FOUR-COMPONENT SYNTHESIS OF POLYSUBSTITUTED 1,4,5,6-TETRAHYDROPYRIDINES |
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Anatoly N. Vereshchagin, Taygib M. Iliyasov, Kirill A. Karpenko, Vladimir A. Smirnov, Ivan E. Ushakov, Michail N. Elinson | 929-933 |

SYNTHESIS OF ALKALOID SINOMENINE DERIVATIVES CONTAINING A PYRIMIDINE SUBSTITUENT IN RING A |
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Анастасия О. Финке, Виктор Г. Карцев, Эльвира Э. Шульц | 934-943 |

SYNTHESIS OF FUNCTIONALIZED 1-METHYLCHROMENO[3,4-b]PYRROL-4(3H)-ONES via THE BARTON–ZARD REACTION STARTING FROM PSEUDONITROSITES |
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Даниил А. Русанов, Александр В. Самет, Вячеслав В. Русак, Виктор В. Семёнов | 944-948 |

DEHYDROBENZENE IN THE REACTION OF A TANDEM [4+2]/[4+2] CYCLOADDITION WITH LINEAR BIS-FURYLDIENES |
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Elizaveta A. Kvyatkovskaya, Polina P. Epifanova, Kseniya K. Borisova, Sophia I. Borovkova, Mikhail S. Grigoriev, Fedor I. Zubkov | 949-961 |

SYNTHESIS OF DIHYDROBENZOTHIAZEPINES BASED ON 1-ACYL-2-HETERYL-1-NITROETHENES |
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Руслан И. Байчурин, Сергей В. Макаренко | 962-965 |

Short Communications
PREPARATION OF AN ADDUCT OF LEVOGLUCOSENONE AND RESORCINOL AND ITS in vitro ANTIPLATELET AND ANTICOAGULANT ACTIVITY |
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Лилия Х. Файзуллина, Юлия А. Халилова, Фарид А. Валеев, Валентин Н. Павлов, Александр В. Самородов | 966-969 |

In memoriam
NINA NIKOLAEVNA MAKHOVA (31.07.1938–22.06.2021) |
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Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv