92204-13-2Relevant articles and documents
Reductive Deuteration of Nitriles Using D2O as a Deuterium Source
Ding, Yuxuan,Luo, Shihui,Weng, Chaoqun,An, Jie
, p. 15098 - 15105 (2019)
The first single electron transfer reductive deuteration of nitriles using D2O as a deuterium source has been developed for the synthesis of valuable α,α-dideuterio amines. A mild reductant (SmI2) was employed as the electron donor w
Hydrosilylative reduction of primary amides to primary amines catalyzed by a terminal [Ni-OH] complex
Bera, Jitendra K.,Pandey, Pragati
supporting information, p. 9204 - 9207 (2021/09/20)
A terminal [Ni-OH] complex1, supported by triflamide-functionalized NHC ligands, catalyzes the hydrosilylative reduction of a range of primary amides into primary amines in good to excellent yields under base-free conditions with key functional group tolerance. Catalyst1is also effective for the reduction of a variety of tertiary and secondary amides. In contrast to literature reports, the reactivity of1towards amide reduction follows an inverse trend,i.e., 1° amide > 3° amide > 2° amide. The reaction does not follow a usual dehydration pathway.
Metabolism of N-alkylated spermine analogues by polyamine and spermine oxidases
Haekkinen, Merja R.,Hyvoenen, Mervi T.,Auriola, Seppo,Casero Jr., Robert A.,Vepsaelaeinen, Jouko,Khomutov, Alex R.,Alhonen, Leena,Keinaenen, Tuomo A.
experimental part, p. 369 - 381 (2010/11/18)
N-alkylated polyamine analogues have potential as anticancer and antiparasitic drugs. However, their metabolism in the host has remained incompletely defined thus potentially limiting their utility. Here, we have studied the degradation of three different spermine analogues N,N′-bis-(3-ethylaminopropyl)butane-1,4-diamine (DESPM), N-(3-benzyl-aminopropyl)-N′-(3-ethylamino-propyl)butane-1,4-diamine (BnEtSPM) and N,N′-bis-(3-benzylaminopropyl)butane-1,4-diamine (DBSPM) and related mono-alkylated derivatives as substrates of recombinant human polyamine oxidase (APAO) and spermine oxidase (SMO). APAO and SMO metabolized DESPM to EtSPD [Km(APAO) = 10 μM, kcat(APAO) = 1.1 s -1 and Km(SMO) = 28 μM, kcat(SMO) = 0.8 s-1, respectively], metabolized BnEtSPM to EtSPD [Km(APAO) = 0.9 μM, kcat(APAO) = 1.1 s-1 and Km(SMO) = 51 μM, kcat(SMO) = 0.4 s-1, respectively], and metabolized DBSPM to BnSPD [Km(APAO) = 5.4 μM, k cat(APAO) = 2.0 s-1and Km(SMO) = 33 μM, kcat(SMO) = 0.3 s-1, respectively]. Interestingly, mono-alkylated spermine derivatives were metabolized by APAO and SMO to SPD [EtSPM Km(APAO) =16 μM, kcat(APAO) = 1.5 s -1; Km(SMO) = 25 μM, kcat(SMO) = 8.2 s -1; BnSPM Km(APAO) = 6.0 μM, kcat(APAO) = 2.8 s-1; Km(SMO) =19 μM, kcat(SMO) = 0.8 s-1, respectively]. Surprisingly, EtSPD [Km(APAO) = 37 μM, kcat(APAO) = 0.1 s-1; Km(SMO) =48 μM, kcat(SMO) = 0.05 s-1] and BnSPD [Km(APAO) = 2.5 μM, kcat(APAO) = 3.5 s-1; Km(SMO) =60 μM, kcat(SMO) = 0.54 s-1] were metabolized to SPD by both the oxidases. Furthermore, we studied the degradation of DESPM, BnEtSPM or DBSPM in the DU145 prostate carcinoma cell line. The same major metabolites EtSPD and/or BnSPD were detected both in the culture medium and intracellularly after 48 h of culture. Moreover, EtSPM and BnSPM were detected from cell samples. Present data shows that inducible SMO parallel with APAO could playanimportant roleinpolyamine based drug action, i.e. degradation of parent drug and its metabolites, having significant impact on efficiency of these drugs, and hence for the development of novel N-alkylated polyamine analogues. Springer-Verlag 2009.
