429669-07-8Relevant articles and documents
Generation and electrophile trapping of N -Boc-2-lithio-2-azetine: Synthesis of 2-substituted 2-azetines
Hodgson, David M.,Pearson, Christopher I.,Kazmi, Madiha
, p. 856 - 859 (2014)
s-BuLi-induced α-lithiation-elimination of LiOMe from N-Boc-3-methoxyazetidine and further in situ α-lithiation generates N-Boc-2-lithio-2-azetine which can be trapped with electrophiles, either directly (carbonyl or heteroatom electrophiles) or after transmetalation to copper (allowing allylations and propargylations), providing a concise access to 2-substituted 2-azetines.
PDE9I WITH IMIDAZO PYRAZINONE BACKBONE
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Page/Page column 37; 38, (2013/04/25)
This invention is directed to compounds, which are PDE9 enzyme inhibitors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. The pres
NEW BRADYKININ B1 ANTAGONISTS
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Page/Page column 202, (2010/04/03)
The invention relates to compounds of formula (I) where in R1, R1a, R1b, R2, R3 and X, X1, X2, X3 have the meaning as cited in the description and the claims. Said compounds are useful as Bradykinin B1 antagonists. The invention also relates to pharmaceutical compositions, the preparation of such compounds as well as the production and use as medicament.