137266-85-4Relevant articles and documents
AZETIDINES AS EP2 ANTAGONISTS
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Page/Page column 55, (2009/06/27)
The present invention relates to a class of EP2 antagonistazetidinesof general formula (I), wherein the variables and substituents are as defined herein,and especially to EP2 antagonist compounds, to their use in medicine, particularly in the treatment of endometriosis and/or uterine fibroids (leiomyomata)and to intermediates usefulin their synthesis and to compositions containing them.
A novel rearrangement reaction conversion of 3-(chloromethyl)azetidin-2-ones to azetidine-3-carboxylic acid esters
Bartholomew,Stocks
, p. 4795 - 4798 (2007/10/02)
Transformation of 3-(chloromethyl)azetidin-2-ones to azetidine-3-carboxylic acid esters is described. The readily available 3-(chloromethyl)azetidin-2-ones rearranged in good yields to azetidine-3-carboxylic acid esters on treatment with alkoxides. An alternative ring opening - ring closure procedure is also identified.