发明名称 |
METHOD OF SYNTHESIS OF 2-(R)-4(5)-NITROIMIDAZOLES |
摘要 |
FIELD: organic chemistry and technology. SUBSTANCE: method involves preliminary preparing a buffer solution of 2-(R)-imidazole in concentrated nitric acid containing ammonium nitrate at concentrated nitric acid feeding at amount 30-25% of total required one and batch addition of ammonium nitrate and 2-(R)-imidazole under constant temperature 25-30 C followed by the second portion of concentrated nitric acid feeding at amount 30-25% of total required one. Then the obtained buffer solution is kept for 0.15 h without stirring followed by the nitration stage with the rest amount of concentrated nitric acid up to 40-50% of its total consumption. The synthesized compounds are effective agents against trichomoniasis. EFFECT: increased yield of nitroimidazole, decreased yield of by-side compounds. 1 cl, 1 tbl, 4 exr
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申请公布号 |
RU2122542(C1) |
申请公布日期 |
1998.11.27 |
申请号 |
RU19970101066 |
申请日期 |
1997.01.23 |
申请人 |
AKTSIONERNOE OBSHCHESTVO OTKRYTOGO TIPA "NIKA-LKS" |
发明人 |
KUPREEV N.I.;NEFEDOV E.S.;PAUCHENKO E.V.;RIVIN EH.M.;SMETANIN V.A.;SKRIPILIN E.P. |
分类号 |
C07D233/92;(IPC1-7):C07D233/92 |
主分类号 |
C07D233/92 |
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