3-Hydroxypropionitrile was subjected to a base-catalyzed exchange reaction in D2O which provided 2,2-dideuterio-3-deuteroxypropionitrile (DOCH2CD2CN) in 70% yield. Reduction of the nitrile with LiAlD4 gave 3-amino-2,2,3,3-tetradeuteriopropan-1-o1 (HOCH2CD2CD2NH2) in a crude yield of 71%. Reaction of this intermediate with N,N-bis(2-chloroethyl)phosphoramidic dichloride [Cl2P(O)N(CH2CH2Cl)2] followed by the combination of those chromatography fractions which contained only pure material gave cyclophosphamide-4,4,5,5-d4 as a white oil in 13% yield. A portion of this oil was converted to the monohydrate by the addition of water (1.1 equivalents) and crystallization from ether/petroleum ether (62% yield). For the hydrate, MS analyses gave an average mole percent enrichment (with average deviation over 5 determinations) of 89.1 ± 0.5% d4.
3-羟基丙腈在D2O中进行碱催化交换反应,获得了2,2-二
氘基-3-
氘氧
丙腈(DOCH2CD2CN),产率为70%。用LiAl
D4还原该腈得到3-
氨基-2,2,3,3-四
氘基
丙醇(HOCH2CD2CD2NH2),粗产率为71%。该中间体与N,N-双(2-
氯乙基)膦酰胺二
氯化物[Cl2P(O)N(CH2CH2Cl)2]反应,随后结合仅含纯物质的分离纯化产物,得到
氟环
磷酰胺-4,4,5,5-
D4作为白色油,产率为13%。部分油通过加入
水(1.1当量)并用醚/石油醚结晶转化为单
水合物(产率为62%)。对于
水合物,质谱分析显示平均摩尔百分比富集(经过5次测定的平均偏差)为89.1 ± 0.5%
D4。