1. Recent advances in the chemistry of nucleosides and their analogs (review)

   • K. Golankiewicz

   ReviewPaper Pages: 587 - 600

2. Pyrylocyanines

   • A. I. Tolmachev
   • G. G. Dyadyusha
   • N. A. Derevyanko

   OriginalPaper Pages: 601 - 605

3. Dipole moments and UV spectra of some two-ring cyclic sulfides

   • E. N. Kharlamova
   • E. N. Gur'yanova
   • V. G. Kharchenko

   OriginalPaper Pages: 605 - 608

4. Mass spectra of 1- and 2^a-substituted 1,3,5,7-tetramethyl-2,4,6,8-tetrathiaadamantanes

   • V. I. Khvostenko
   • E. G. Galkin
   • G. A. Tolstikov

   OriginalPaper Pages: 608 - 612

5. Acetylenic α-aziridinylcarbinols in reactions with hydrazine and methyl-substituted hydrazines

   • A. V. Eremeev
   • D. A. Tikhomirov
   • É. É. Liepin'sh

   OriginalPaper Pages: 612 - 616

6. Kinetic characteristics of the ring-chain tautomeric equilibria of 2,3,3-trimethyl-1-aryl-2-hydroxy-5-pyrrolidones

   • L. Yu. Yuzefovich
   • B. M. Sheiman
   • V. G. Mairanovskii

   OriginalPaper Pages: 617 - 622

7. Research on 1-aza two-ring compounds

   • I. M. Skvortsov
   • I. V. Antipova

   OriginalPaper Pages: 622 - 625

8. Pyrroles from ketoximes and acetylene

   • B. A. Trofimov
   • M. V. Sigalov
   • L. N. Balabanova

   OriginalPaper Pages: 626 - 630

9. Porphyrins

   • G. V. Ponomarev
   • V. P. Suboch
   • A. N. Lyashko

   OriginalPaper Pages: 631 - 636

10. Introduction of 3-indolylmethyl residues in nitroacetic acid esters

    • Yu. V. Erofeev
    • V. S. Velezheva
    • N. N. Suvorov

    OriginalPaper Pages: 637 - 641

11. Transformations of pyrrolanthrone-1-carboxylic acid

    • M. V. Kazankov
    • E. G. Sadovykh

    OriginalPaper Pages: 641 - 644

12. Autoxidative transformations of 2-substituted 3-alkyl-4-hydroxy-1-oxo-1, 2-dihydroisoquinolines

    • Ya. Ya. Ozol
    • É. É. Liepin'sh
    • G. Ya. Dubur

    OriginalPaper Pages: 644 - 648

13. Acetals of lactams and acid amides

    • V. G. Granik
    • E. M. Peresleni
    • Yu. N. Sheinker

    OriginalPaper Pages: 648 - 652

14. Acetals of lactams and acid amides

    • O. Ya. Belyaeva
    • V. G. Granik
    • O. S. Anisimova

    OriginalPaper Pages: 653 - 656

15. Indolizines

    • T. S. Loseva
    • M. S. Goizman
    • L. N. Yakhontov

    OriginalPaper Pages: 657 - 663

16. Amination of 5-azacinnoline with aromatic amines

    • M. F. Budyka
    • P. B. Terent'ev
    • A. N. Kost

    OriginalPaper Pages: 663 - 666

17. Mass spectrometry of biologically active substances

    • V. G. Voronin
    • A. I. Ermakov
    • S. B. Goncharenko

    OriginalPaper Pages: 667 - 671

18. Mass spectrometry of biologically active substances

    • A. I. Ermakov
    • V. G. Voronin
    • Z. A. Panfilova

    OriginalPaper Pages: 671 - 675

19. Methylation of pyrimidine derivatives

    • V. G. Voronin
    • S. B. Goncharenko
    • M. I. Shemeryankina

    OriginalPaper Pages: 675 - 678

20. Mass spectra of pyrazino- and piperazinoindole derivatives

    • A. I. Ermakov
    • Yu. N. Sheinkef
    • A. N. Grinev

    OriginalPaper Pages: 679 - 684

21. Heterocyclic analogs of pleiadiene

    • I. V. Borovlev
    • A. F. Pozharskii

    OriginalPaper Pages: 684 - 693

22. Tautomerism of 2-aminoperimidines

    • B. V. Lopatin
    • S. K. Drusvyat-skaya
    • A. F. Bekhli

    OriginalPaper Pages: 694 - 698

23. Synthesis and transformations of acids of the triazole series

    • R. G. Sultangareev
    • V. A. Lopyrev
    • M. G. Voronkov

    OriginalPaper Pages: 699 - 700

24. Unusual cleavage of heterocyclic azo compounds under the influence of amines

    • S. N. Kolodyazhnaya
    • R. A. Sogomonova
    • L. N. Divaeva

    Letters to the Editor Pages: 701 - 701

25. Method for the synthesis of 2-aryl-3-aminobenzofurans

    • V. A. Zagorevskii
    • L. A. Samarina
    • L. M. Sharkova

    Letters to the Editor Pages: 702 - 702

26. Stereochemistry of heterocyclic compounds

    • W. L. F. Armarego

    New books Pages: 703 - 704