The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以乙酸乙酯和乙醇胺为原料合成了苄青霉素低毒前体乙酰基乙醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基化反乙酰基，接着溴化、胺化，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻唑中间体-2-(二溴乙酰基)-唑氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以酸酯和醇胺为原料合成了苄青霉素低毒前酰基醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基化反应引入酰基，接着溴化、胺化，得到标题树。该法避免了使甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-酰基并咪唑和溴化钠为原料,在光照条件气置换出溴化钠中的溴素,合成兽药噻咪唑中间-2-(二溴酰基)-并咪唑氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以苯乙酸乙酯和乙醇胺为原料合成苄青霉素低毒前体苯乙酰基乙醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基化反应引入乙酰基，接着溴化、胺化，题树。该法使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰基)-苯并咪唑氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以苯乙酸乙酯和乙醇胺为原料合成了苄青霉素低毒前体苯乙酰基乙醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基化反应引入乙酰基，接着化、胺化，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并咪和化钠为原料,在光照条件下用氯气置换出化钠中的素,合成兽药噻苯咪中间体-2-(二乙酰基)-苯并咪酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以乙酸乙酯和乙醇胺为原料合成了苄青霉素低毒前体乙酰基乙醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基化反乙酰基，接着溴化、胺化，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻唑中间体-2-(二溴乙酰基)-唑氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以苯乙酸乙酯乙醇胺为原料合成了苄青霉素低毒前体苯乙酰基乙醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基引入乙酰基，接着溴、胺，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并溴钠为原料,在光照条件下用氯气置换出溴钠中的溴素,合成兽药噻苯中间体-2-(二溴乙酰基)-苯并氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以苯酸酯和胺为原料合成了苄青霉素低毒前体苯酰胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰化反应引入酰，接着溴化、胺化，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-酰苯并咪唑和溴化钠为原料,在件下用氯气置换出溴化钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴酰)-苯并咪唑氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以苯乙酸乙酯和乙为原合成了苄青霉素低毒前体苯乙酰基乙。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

过付氏酰基化反应引入乙酰基，接着溴化、化，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并咪唑和溴化钠为原,照条件下用氯气置换出溴化钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰基)-苯并咪唑氢溴酸盐。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以酸酯和醇胺为原料合成了苄青霉素低毒前体醇胺。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏化反应引，接着溴化、胺化，得到标题树。该法避免了使用氯甲醚。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻咪唑中间体-2-(二溴)-并咪唑氢溴酸盐。