Tertiary hydroxyalkylxanthines, medicaments containing them and their use
申请人:Hoechst Aktiengesellschaft
公开号:US04833146A1
公开(公告)日:1989-05-23
Tertiary hydroxyalkylxanthines having the general formula (I), characterized by the fact that at least one of the residues R.sup.1 and R.sup.3 represents a tertiary hydroxyalkyl group of formula (Ia) in which R.sup.4 represents an alkyl group having up to 3 carbon atoms and n a whole number from 2 to 5; the other residue which may remain R.sup.1 or R.sup.3 is a hydrogen atom or an aliphatic hydrocarbon residue R.sup.5 having up to 6 carbon atoms, in which the carbon chain may be separated by a maximum of two oxygen atoms or be substituted by an oxo group or two hydroxy groups at the most, and R.sup.2 represents an alkyl group with 1 to 4 carbon atoms. Also described is a process for manufacturing these compounds, which are suitable for the manufacture of medicines, in particular for use in the prevention and/or treatment of peripheral and/or cerebral irrigation disorders. ##STR1##
TERTIÄRE HYDROXYALKYLXANTHINE, VERFAHREN ZU IHRER HERSTELLUNG, DIE SIE ENTHALTENDEN ARZNEIMITTEL UND IHRE VERWENDUNG
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0268585B1
公开(公告)日:1990-05-30
US4833146A
申请人:——
公开号:US4833146A
公开(公告)日:1989-05-23
[EN] TERTIARY HYDROXYALKYLXANTHINES, THEIR MANUFACTURING PROCESS, MEDICINES CONTAINING THEM AND USE THEREOF
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:WO1987000523A2
公开(公告)日:1987-01-29
(EN) Tertiary hydroxyalkylxanthines having the general formula (I), characterized by the fact that at least one of the residues R1 and R3 represents a tertiary hydroxyalkyl group of formula (Ia) in which R4 represents an alkyl group having up to 3 carbon atoms and n a whole number from 2 to 5; the other residue which may remain R1 or R3 is a hydrogen atom or an aliphatic hydrocarbon residue R5 having up to 6 carbon atoms, in which the carbon chain may be separated by a maximum of two oxygen atoms or be substituted by an oxo group or two hydroxy groups at the most, and R2 represents an alkyl group with 1 to 4 carbon atoms. Also described is a process for manufacturing these compounds, which are suitable for the manufacture of medicines, in particular for use in the prevention and/or treatment of peripheral and/or cerebral irrigation disorders.(FR) Hydroxyalkylxanthines tertiaires de formule générale (I), caractérisés en ce qu'au moins un des résidus R1 et R3 représente un groupe hydroxyalkyle tertiaire de formule (Ia) dans laquelle R4 représente un groupe alkyle possédant jusqu'à 3 atomes de carbone et n un nombre entier compris entre 2 et 5; l'autre résidu éventuellement restant R1 ou R3 est un atome d'hydrogène ou bien un résidu d'hydrocarbure aliphatique R5 possédant jusqu'à 6 atomes de carbone, dont la chaîne carbonée peut être interrompue par 2 atomes d'oxygène au maximum ou bien être substituée par un groupe oxo ou deux groupes hydroxy au maximum, et R2 représente un groupe alkyle possédant de 1 à 4 atomes de carbone. Est également décrit un procédé de fabrication de ces composés, lesquels sont indiqués pour la fabrication de médicaments, en particulier pour des applications de prévention et/ou de traitement de troubles de l'irrigation cérébrale et/ou périphérique.
Regioselective Epoxidations by Cytochrome P450 3A4 Using a Theobromine Chemical Auxiliary to Predictably Produce N-Protected β- or γ-Amino Epoxides
作者:Vanja Polic、Kin Jack Cheong、Fabien Hammerer、Karine Auclair
DOI:10.1002/adsc.201700637
日期:2017.11.23
N-Protected β- and γ-aminoepoxides are useful chiral synthons. We report here that the enzyme cytochrome P450 3A4 can catalyze the formation of such compounds in a regio- and stereoselective manner, even in the presence of multiple double bonds or aromatic substituents. To this end, the theobromine chemical auxiliary is used not only to control the selectivity of the enzyme, but also as a masked amine