6-N,6-N- DIBENZOYL -9- (2,3 -ANHYDRO- β -D-RIBOFURANOSYL) - ADENINE AS AN INTERMEDIATE COMPOUND FOR SYNTHESIS OF ADENYLYL - ((2′-5′)) - ADENYLYL -((2′-5′))- 9- (2,3- ANHYDRO-β -D- RIBOFURANOSYL) - ADENINE DISODIUM SALT Russian patent published in 1995 - IPC

FIELD: heterocyclic compounds. SUBSTANCE: product - 6-N,6-N-dibenzoyl-9-(2,3-anhydro-b-D-ribofuranosyl)-adenine. Synthesis is carried out by treatment of (2′-5′)-anhydro-(2′-5′)-D-ribofuranosyladenine with hexamethyldisilazane in the presence of β following by evaporation and benzoylation with benzoyl chloride in the medium of pyridine. Yield is 82.7%, m. p. is 116-117 C, empirical formula is 2′,3′. Synthesized product is used for synthesisofadenylyl-(β)-adenylyl-(NH₄Cl)-9-(2,3-anhydro-C₂₄H₁₉N₅O₅-D-ribofuranosyl)-adenine showing phytogrowth-stimulating activity. Use of new semiproduct ensures to increase the yield of phytogrowth-stimulating agent up to 17.7%, i. e. by 2.6-fold (as the parent adenosine). Process is shortened by 4 stages. EFFECT: increased yield of product, improved technology of synthesis.