发明名称 |
New 1-heterocyclyl:methyl-3-nitro-1,2,4-triazole derivs. - are used to increase the sensitivity of tumour cells prior to radio therapy |
摘要 |
1-Heterocyclylmethyl-3-nitro -1,2,4-triazoles of formula (I) are new. In (I) Q is a gp. of formula Q1-Q4: R1 and R2 are H, halogen, opt. substd. alkyl, alkenyl or alkynyl, or aralkyl or aryl; X is O,S or NR3; Y is CH2, CH or XCHR3; Z is O,S or NH; R3 is H, opt. substd. 1-6C alkyl, opt. substd. aralkyl or opt. mono-to trisubstd. aryl; R4 is XR3, S(O)mR3 or R3; n is 1 or 2; m is 0-2; a is 0-3; and b is 1-4. Intermediates of formula (III) are also new. An opt. prepn. of (I), includes reacting a triazole deriv. of formula (II) with halohydrocarbon of formula ECH2Q (where m=H or alkali metal; and E is Cl, Br or I). (III) are prepd. by reacting (II) with ECH2CONHNHCZR or by reacting 3-nitro-1,2,4-triazole -1-acetic acid hydrazide with R, NCZ, CZ(E)2 or ECN. USE/ADVANTAGE - (I) are radiosensitising agents for increasing the sensitivity of tumours to radiotherapy. They have relatively low toxicity, e.g. with LD50 values of 2-10 mmole/kg.
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申请公布号 |
DE4134224(A1) |
申请公布日期 |
1993.04.22 |
申请号 |
DE19914134224 |
申请日期 |
1991.10.16 |
申请人 |
APOGEPHA ARZNEIMITTEL GMBH, O-8019 DRESDEN, DE |
发明人 |
HENTSCHEL, MICHAEL, DR., O-1115 BERLIN, DE;SOLLE, MARGIT, DR., O-1020 BERLIN, DE;SCHROEDER, ELLINOR, DR., O-1123 BERLIN, DE;HESCHEL, MICHAEL, DR., O-8300 PIRNA, DE |
分类号 |
C07D249/10;C07D249/12;C07D249/14;C07D403/06;C07D413/06 |
主分类号 |
C07D249/10 |
代理机构 |
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