FIELD: pharmaceutical industry. SUBSTANCE: derivative of pyrazolo-[3,4-b] -pyridine-5-yl-3,5-dihydroxy-hept-6-enoic acid having formula II 
is used as reagent 1. Reaction is carried out by cyclization in organic solvent in the presence of dehydrating agent. Desired product has structural formula I 
. EFFECT: improves efficiency of the method.
| Title |
Year |
Author |
Number |
| DERIVATIVES OF PYRAZOLO(3,4-B)PYRIDINE |
1989 |
- Fudzikava Esikhiro[Jp]
- Suzuki Mikio[Jp]
- Ivasaki Khirosi[Jp]
- Sakasita Mitsuaki[Jp]
- Kitakhara Masaki[Jp]
|
RU2022964C1 |
| SULFUR-CONTAINING HETEROCYCLIC COMPOUNDS OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF |
1989 |
- Takasi Sokhda[Jp]
- Masao Tsuda[Jp]
- Ivao Jamazaki[Jp]
|
RU2041875C1 |
| PROCESS FOR PREPARING SUBSTITUTED AMINE DERIVATIVES |
1990 |
- Susumu Tsusima[Jp]
- Muneo Takatani[Jp]
- Minoru Khirata[Jp]
|
RU2015964C1 |
| OPTICALLY ACTIVE BETA-AMINOALKIXYBORANE COMPLEX, METHOD OF ITS PREPARATION, OPTICALLY ACTIVE BETA-AMINO-ALCOHOL DERIVATIVE FOR PREPARATION OF AMINOALKOXYBORANE COMPLEX, AND METHODS OF COMPLEX- MEDIATED PREPARATION OF OPTICALLY ACTIVE ALCOHOLS |
1994 |
- Khirosi Kasikhara
- Mikio Suzuki
- Josio Okhara
|
RU2126412C1 |
| DERIVATIVES OF 3(2H)-PYRIDAZINONE AND THEIR PHARMACEUTICALLY ACCEPTABLE SALTS AND PHARMACEUTICAL COMPOSITION ON THEIR BASE |
1991 |
- Kejzo Tanikava[Jp]
- Akira Saito[Jp]
- Takasi Matsumoto[Jp]
- Riozo Sakoda[Jp]
- Nobutomo Tsuruzoe[Jp]
- Ken-Iti Sikada[Jp]
|
RU2054004C1 |
| DERIVATIVES OF 3(2H)-PYRIDAZINONES OR THEIR PHARMACEUTICALLY ACCEPTABLE ADDITIVE ACID SALTS AND PHARMACEUTICAL COMPOSITION ON SAID |
1994 |
- Kejzo Tanikava
- Akira Saito
- Mitsuaki Khirotsuka
- Ken-Iti Sikada
|
RU2138486C1 |
| DERIVATIVES OF 1,2,4-TRIAZOLE, OPTICALLY INERT OR CONTAINING R- OR S-CONFIGURATION AT C-2 AND C-3 ASYMMETRIC CENTERS, OR THEIR SALTS SHOWING FUNGICIDE ACTIVITY, AND A METHOD OF THEIR SYNTHESIS |
1990 |
- Katsumi Itokh[Jp]
- Kendzi Okonogi[Jp]
|
RU2039050C1 |
| DERIVATIVES OF 3(2H)-PYRIDAZINONE |
1992 |
- Masakazu Taniguti[Jp]
- Masatosi Baba[Jp]
- Jasinori Otiaj[Jp]
- Masaesi Khirose[Jr]
- Kiminori Khirata[Jp]
|
RU2054422C1 |
| BENZENE DERIVATIVES CONTAINING HETEROCYCLE, METHODS OF THEIR SYNTHESIS, AND HERBICIDE AGENT |
1992 |
- Kendzi Khirai[Jp]
- Mitsuo Jamasita[Jp]
- Tomoko Tateno[Jp]
- Emi Edziri[Jp]
- Kikuko Kharasava[Jp]
- Juiti Ondzi[Jp]
|
RU2038351C1 |
| PYRANOBENZOXADIAZOLE DERIVATIVES OR THEIR PHARMACEUTICALLY ACCEPTABLE SALTS |
1989 |
- Seto Kietomo[Jp]
- Matsumoto Khiroo[Jp]
- Kamikavadzi Esimasa[Jp]
- Okhraj Kazukhiko[Jp]
- Nakajama Kioko[Jp]
- Sakoda Riozo[Jp]
- Masuda Jukinori[Jp]
|
RU2054007C1 |
