摘要:
The invention relates to new hexitols having the general formula (I) and (II), ##STR1## wherein the hexitol skeleton is dulcitol, mannitol or iditol,X represents halogen, preferably bromine,R is a saturated or unsaturated C.sub.4-10 alkylcarbonyl group which also contains a free carboxy group, andR.sup.1 is hydrogen, a saturated or unsaturated C.sub.4-10 alkylcarbonyl group which also contains a free carboxy group, a saturated or unsaturated C.sub.2-10 alkylcarbonyl group, a saturated or unsaturated C.sub.4-10 alkylcarbonyl group which also contains an alkoxycarbonyl group, or a saturated or unsaturated C.sub.8-10 aralkylcarbonyl group,and salts of these compounds. The new compounds according to the invention have tumor-inhibiting affects.The above compounds are prepared according to the invention so that(a) a compound of the general formula (IX), whereinthe hexitol skeleton is dulcitol, mannitol or iditol,Q is a saturated or unsaturated C.sub.11-17 alkylcarbonyl group which also contains a benzyloxycarbonyl group, andQ.sup.1 is hydrogen, a saturated or unsaturated C.sub.2-10 alkylcarbonyl group, a saturated or unsaturated C.sub.4-10 alkylcarbonyl group which also contains an alkoxycarbonyl group, a saturated or unsaturated C.sub.11-17 alkylcarbonyl group which also contains a benzyloxycarbonyl group, or a saturated or unsaturated C.sub.8-10 aralkylcarbonyl group, is hydrogenated in an anhydrous solvent in the presence of a weakly active catalyst which does not affect the epoxide ring, or(b) a 1,2-5,6-dianhydrohexitol of the general formula (X), wherein the hexitol skeleton is dulcitol, mannitol or iditol, is reacted with a dicarboxylic acid anhydride of the general formula (XI), wherein A is a C.sub.2-10 alkyl, aralkyl or aryl group, or(c) a compound of the general formula (I) is reacted with an alkali halide and/or hydrogen halide. ##STR2##
摘要:
The invention relates to new cytostatic compound, process for their preparation and pharmaceutical compositions containing them. More particularly, there are provided new compounds of the general formula ##STR1## in which R.sup.4 is .beta.-hydroxyl andR.sup.3 is .alpha.-ethyl; orR.sup.4 is hydrogen andR.sup.3 is .beta.-ethyl;R" is a straight chained alkyl having from 1 to 10 carbon atoms, or a branched chained alkyl having from 3 to 10 carbon atoms, in which groups the carbon atom attached to the >N.sub.a --CH.sub.2 --O-- group has a primary or secondary configuration or an alkenyl or alkinyl having from 3 to 6 carbon atoms, or an aralkyl having from 1 to 3 carbon atoms in the alkyl moiety;R.sup.1 is methoxy andR.sup.2 is acetyl, provided that if R.sup.3 is .alpha.-ethyl and R.sup.4 .beta.-hydroxyl,R.sup.4 is other than ethyl.These compounds and N-desmethyl-N-(ethoxymethyl)-vinblastine can be prepared according to the invention by transetherification of compounds of the compounds of the general formula ##STR2## with a large excess of alcohols of the general formulaR"--OH [III]Pharmaceutical compositions containing compounds of the general formula [I] as active ingredients are also within the scope of invention.
摘要翻译:本发明涉及新的细胞生长抑制化合物,其制备方法和含有它们的药物组合物。 更具体地,提供了通式为“IMAGE”/ I /的新化合物,其中R 4是β-羟基和R 3是α-乙基; 或R4是氢,R3是β-乙基; R“是具有1至10个碳原子的直链烷基或具有3至10个碳原子的支链烷基,其中与> Na-CH 2 -O-基团连接的碳原子具有伯或 二级构型或具有3至6个碳原子的烯基或炔基,或在烷基部分具有1至3个碳原子的芳烷基; R1是甲氧基,R2是乙酰基,条件是如果R3是α-乙基和R4β-羟基,R4不是乙基。 这些化合物和N-去甲基-N-(乙氧基甲基) - 长春花碱可以根据本发明通过将通式为“IMAGE”/ II /的化合物的化合物与大量过量的通式R' '-OH [III]含有通式[I]化合物作为活性成分的药物组合物也在本发明的范围内。
摘要:
The invention relates to new cytostatic compound, process for their preparation and pharmaceutical compositions containing them. More particularly, there are provided new compounds of the general formula ##STR1## in which R.sup.4 is .beta.-hydroxyl andR.sup.3 is .alpha.-ethyl; orR.sup.4 is hydrogen andR.sup.3 is .beta.-ethyl;R" is a straight chained alkyl having from 1 to 10 carbon atoms, or a branched chained alkyl having from 3 to 10 carbon atoms, in which groups the carbon atom attached to the >N.sub.a -CH.sub.2 -O-- group has a primary or secondary configuration or an alkenyl or alkinyl having from 3 to 6 carbon atoms, or an aralkyl having from 1 to 3 carbon atoms in the alkyl moiety;R.sup.1 is methoxy andR.sup.2 is acetyl,provided that if R.sup.3 is .alpha.-ethyl and R.sup.4 .beta.-hydroxyl, R.sup.4 is other than ethyl.These compounds and N-desmethyl-N- ethoxy- methyl -vinblastine can be prepared according to the invention by transetherification of compounds of the compounds of the general formula ##STR2## with a large excess of alcohols of the general formulaR"--OH (III)Pharmaceutical compositions containing compounds of the general formula /I/ as active ingredients are also within the scope of invention.