144062-00-0Relevant academic research and scientific papers
Biocatalytic One-Carbon Ring Expansion of Aziridines to Azetidines via a Highly Enantioselective [1,2]-Stevens Rearrangement
Miller, David C.,Lal, Ravi G.,Marchetti, Luca A.,Arnold, Frances H.
, p. 4739 - 4745 (2022/03/27)
We report enantioselective one-carbon ring expansion of aziridines to make azetidines as a new-to-nature activity of engineered "carbene transferase" enzymes. A laboratory-evolved variant of cytochrome P450BM3, P411-AzetS, not only exerts unparalleled stereocontrol (99:1 er) over a [1,2]-Stevens rearrangement but also overrides the inherent reactivity of aziridinium ylides, cheletropic extrusion of olefins, to perform a [1,2]-Stevens rearrangement. By controlling the fate of the highly reactive aziridinium ylide intermediates, these evolvable biocatalysts promote a transformation which cannot currently be performed using other catalyst classes.
AZETIDOBENZODIAZEPINE DIMERS AND CONJUGATES COMPRISING THEM FOR USE IN THE TREATMENT OF CANCER
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Page/Page column 68-69, (2020/10/09)
A compound of formula IV: as well as drug-linkers and conjugates comprising this compound, and the use of the conjugates in treating cancer.
Selective cleavage of carbamate protecting groups from aziridines with otera's catalyst
Sun, Shan,Tirotta, Ilaria,Zia, Nicholas,Hutton, Craig A.
, p. 411 - 415 (2014/04/03)
Otera's distannoxane catalyst was found to promote the cleavage of carbamate groups from N-protected aziridines. This method enables the chemoselective cleavage of an aziridinyl N-carbobenzyloxy (Cbz) group in the presence of other N-Cbz groups. The selec
Enantioselective catalytic reductions of ketones with new four membered oxazaborolidines: Application to (S)-tetramisole
Rama Rao,Gurjar,Kaiwar
, p. 859 - 862 (2007/10/02)
Enantioselective catalytic reduction of ketones with both the enantiomers of new four membered oxazaborolidines is described.
