FIELD: chemical industry. SUBSTANCE: present invention concerns perhydroisoindole derivatives of general formula (I) wherein R symbols are identical and are phenyl radicals substituted optionally by halogen or methyl in position 2 or 3, and R′ is phenyl substituted optionally in position 2 by alkyl or alkoxy containing 1 or 2 carbon atoms, R″ is fluorine or hydroxy, and R″′ is hydrogen or R″ and R″′ are hydroxy, or R″ forms bond with R″′, and Ro is hydrogen or protecting radical, and also salts thereof when they are present, and preparation thereof. Intermediate synthesis compounds for preparation of derivatives having antagonistic activity with respect to compound P. EFFECT: improved properties of the title compounds. 8 cl, 42 ex, 1 tbl
             
         
            
              
                | Title | Year | Author | Number | 
							
              
                | DERIVATIVES OF PERHYDROISOINDOLE, METHODS OF THEIR SYNTHESIS, A PHARMACEUTICAL COMPOSITION BASED ON SAID | 1993 | 
										Daniel' AsharSerzh GrizoniZhan-Ljuk MalleronZhan-Fransua Pejronel'Mishel' Tabart | RU2127260C1 | 
							
              
                | DERIVATIVES OF ISOINDOLONE AS (3 AR, 7 AR)- OR (3 ARS, 7 ARS)-FORMS OR THEIRS MIXTURES OR THEIRS HYDROCHLORIDES, WHICH ARE ANTAGONISTS OF COMPOUND P | 1990 | 
										Mari-Kristin Djubrek[Fr]Klod Muton'E[Fr]Zhan-Fransua Pejronel'[Fr]Mishel' Tabar[Fr]Alan Trjushon[Fr] | RU2012559C1 | 
							
              
                | ISOINDOLONE DERIVATIVES OR THEIR SALTS WITH ACIDS AS INTERMEDIATE COMPOUNDS FOR SYNTHESIS OF BIOLOGICALLY ACTIVE COMPOUNDS - PERHYDROISOINDOLONES | 1992 | 
										Mari-Kristin Djubrek[Fr]Klod Mutonn'E[Fr]Zhan-Fransua Pejronel'[Fr]Mishel' Tabar[Fr]Alan Trjushon[Fr] | RU2104269C1 | 
							
              
                | METHOD OF PREPARING TAXAN AND TAXAN DERIVATIVES | 1991 | 
										Zhan-Dominik Burza[Fr]Alen Kommerson[Fr]Zhan-Mark Pari[Fr] | RU2095356C1 | 
							
              
                | METHOD OF PREPARING OXAZOLIDINECARBOXYLIC ACID IS INTERMEDIATE COMPOUND FOR PREPARING TAXOIDS | 1994 | 
										Zhan-Dominik BurzaAlan Kommerson | RU2128652C1 | 
							
              
                | TAXOIDS, METHOD OF PREPARATION THEREOF, AND PHARMACEUTICAL COMPOSITION BASED ON THESE COMPOUNDS | 1995 | 
										Bushar EhrveBurza Zhan-DominikKommerson AlenTerr'E KorinnZjukko Martin | RU2153496C2 | 
							
              
                | METHOD FOR PRODUCTION OF β-PHENYL ISOSERINE AND ITS ANALOGES, DERIVATIVES OF β-PHENYLISOSERINE, DERIVATIVES OF AZETIDINONE | 1993 | 
										Zhan-Dominik Burza[Fr]Alen Kommerson[Fr] | RU2103258C1 | 
							
              
                | DERIVATIVES OF PYRROLIDINE, METHOD OF THEIR SYNTHESIS (VARIANTS), PHARMACEUTICAL COMPOSITION, METHOD OF SEPARATION OF ENANTIOMERS AND CHIRAL PHASE FOR SEPARATION OF ENANTIOMERS | 1992 | 
										Mark KapetKlod Kotrel'Klod GijonMishel' ZhoannikFranko ManfreZherar Russel'Mari-Kristin DjubroekkMishel' ShevZhij Djutrjuk-Rosse | RU2118316C1 | 
							
              
                | TAXOIDS, METHODS OF THEIR SYNTHESIS, INTERMEDIATE COMPOUNDS AND PHARMACEUTICAL COMPOSITION | 1993 | 
										Ehrve BusharZhan-Dominik BurzaAlen Kommerson | RU2139864C1 | 
							
              
                | TAXOIDS, METHOD OF THEIR SYNTHESIS AND PHARMACEUTICAL COMPOSITION BASED ON THEREOF | 1995 | 
										Ehrve BusharZhan-Dominik BurzaAlan Kommerson | RU2144920C1 |