1193388-07-6Relevant articles and documents
An improved chemoenzymatic synthesis of both enantiomers of trans-cyclopentane-1,2-diamine
Pena, Carmen,Gonzalez-Sabin, Javier,Rebolledo, Francisca,Gotor, Vicente
, p. 751 - 755 (2008)
An improved chemoenzymatic protocol for the synthesis of both enantiomers of trans-cyclopentane-1,2-diamine is described. The key part of the strategy relies on the synthesis and subsequent enzymatic resolution of its racemic precursor trans-N,N-diallylcy
CAFFEINE INHIBITORS OF MTHFD2 AND USES THEREOF
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, (2017/07/06)
The present invention provides compounds, compositions thereof, and methods of using the same.
A preparing high optical purity of the trans -1,2-cyclic diamine method
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, (2016/10/08)
The invention discloses a method for preparing high-optical-purity trans-1,2-cyclodiamine and provides a method for preparing trans-1,2-diamine despinner by carrying out trans-ring-opening reaction on a p-tolylsulfonyl aza-bicyclic compound through chiral phenethylamine under the action of lithium perchlorate. The method comprises the following steps: reacting a trans-1,2-diamine despinner compound with acid to generate trans-1,2-diamine despinner compound acid salt; performing resolution through a step-by-step re-crystallization process to obtain a high-optical-purity (R,R)-1,2-diamine (Xb) compound and (S,S)-1,2-diamine compound monomer acid salt respectively; hydrogenating a trans-1,2-diamine (Xb) compound monomer under the action of a palladium catalyst to remove benzyl so as to obtain high-optical-purity trans-1,2-p-tolylsulfonyl cyclopentanediamine; protecting the amino of a high-optical-purity trans-1,2-cyclodiamine (Xc) monomer through an amino protecting agent; removing p-tolylsulfonyl at a low temperature through lithium naphthalene to obtain a high-optical-purity trans-t-butyloxycarboryl-1,2-cyclodiamine (Xd) compound monomer. The method is high in yield, low in cost and suitable for industrial production.