[DE] VERFAHREN ZUR HERSTELLUNG VON 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTAN-1,2-DIOLDERIVATEN [EN] METHOD FOR THE PRODUCTION OF 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTANE-1,2-DIOL DERIVATIVES [FR] PROCEDE POUR PRODUIRE DES DERIVES DE 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTANE-1,2-DIOLS
[DE] VERFAHREN ZUR HERSTELLUNG VON 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTAN-1,2-DIOLDERIVATEN [EN] METHOD FOR THE PRODUCTION OF 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTANE-1,2-DIOL DERIVATIVES [FR] PROCEDE POUR PRODUIRE DES DERIVES DE 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTANE-1,2-DIOLS
Method for the production of 3-amino-5-(hydroxymethyl) cyclopentane-1,2-diol-derivatives
申请人:Griffiths Gareth-John
公开号:US20070043225A1
公开(公告)日:2007-02-22
A method for the production of acetals and ketals of 3-amino-5-(hydroxymethyl)cyclopentane-1,2-diols of formula (I):
(and/or the enantiomer), where R
1
is H, C
1-6
-alkyl, C
3-8
-cycloalkyl or benzyl and (i) R
2
is methyl and R
3
is ethyl, (ii) R
2
is H and R
3
is C
1-6
-alkyl or phenyl or (iii) R
2
and R
3
together form a group of formula —(CH
2
)
n
— with n=4 to 6, present as free amines or as salts of di- or tri-basic organic acids, starting from 2-acetyl-2-azabicyclo[2.2.1]hept-5-en-3-one of formula (II):
(and/or the enantiomer). The method is equally useful, depending on the starting material, for the production of enantiomerically-pure compounds, or mixtures with arbitrary enantiomeric content.
[DE] VERFAHREN ZUR HERSTELLUNG VON 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTAN-1,2-DIOLDERIVATEN<br/>[EN] METHOD FOR THE PRODUCTION OF 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTANE-1,2-DIOL DERIVATIVES<br/>[FR] PROCEDE POUR PRODUIRE DES DERIVES DE 3-AMINO-5-(HYDROXYMETHYL)CYCLOPENTANE-1,2-DIOLS