中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
N-甲基-2-三甲基硅烷基氧基-N-(2-三甲基硅烷基氧基乙基)乙胺 | N-methyl-N,N-bis(ethyltrimethylsilylether) | 76710-52-6 | C11H29NO2Si2 | 263.528 |
—— | N,N-bis<2-(trimethylsiloxy)ethyl>formamide | 77214-47-2 | C11H27NO3Si2 | 277.511 |
1,3-二氧杂-6-氮杂-2-硅杂环辛烷,2,2-二甲基- | 2,2-dimethyl-1,3-dioxa-6-aza-2-silacyclooctane | 14880-50-3 | C6H15NO2Si | 161.276 |
The reaction of 2-chloro-3-(2-chloroethyl)-tetrahydro-2H-1,3,2-oxazaphosphorin-2-oxide 1 and 2-chloro-tetrahydro-2H-1,3,2-oxazaphosphorin-2-oxide 2 with 2-(trimethylsilyloxy)ethylamine 3 and bis-[2-(trimethylsiloxy)ethyl]amine 4, respectively, yielded the trimethylsilylated compounds 5 and 6, analogous to ifosfamide and cyclophosphamide. The reaction of 5 and 6 with 2-chloro-1,3,5-trimethyl-1,3,5-triaza-2-phosphorin-4,6-dione 7 led to the diphosphorus compounds 8 and 9 which could be transformed to ifosfamide 11 and cyclophosphamide 12 by treatment with sulfuryl chloride. This synthesis shows that the alkylating agents 2- chloroethylammonium chloride and bis-(2-chloroethyl)ammonium chloride can be avoided and the chlorine atom can be introduced in the final reaction step of the synthesis of 11 and 12.