Aminoalkohole, 2. Mitt.: Ein Verfahren zur Herstellung enantiomerenreiner pharmakologisch aktiver ?-Aminoalkohole
摘要:
A synthesis of beta-aminoalcohols is described starting from racemic or enantiomerically pure alpha-hydroxynitriles which were O-protected using enantiomerically pure acetal type protective groups. Reduction with lithium aluminium hydride yielded O-protected beta-aminoalcohols. Whenever diastereomeric O-protected cyanohydrins could not be separated, the mixture was reduced and the resulting O-protected aminoalcohols were separated. Removal of the protective group using hydrogen chloride and methanol yielded enantiomerically pure beta-aminoalcohols or their corresponding hydrochlorides.
Aminoalkohole, 2. Mitt.: Ein Verfahren zur Herstellung enantiomerenreiner pharmakologisch aktiver ?-Aminoalkohole
摘要:
A synthesis of beta-aminoalcohols is described starting from racemic or enantiomerically pure alpha-hydroxynitriles which were O-protected using enantiomerically pure acetal type protective groups. Reduction with lithium aluminium hydride yielded O-protected beta-aminoalcohols. Whenever diastereomeric O-protected cyanohydrins could not be separated, the mixture was reduced and the resulting O-protected aminoalcohols were separated. Removal of the protective group using hydrogen chloride and methanol yielded enantiomerically pure beta-aminoalcohols or their corresponding hydrochlorides.
ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, AND ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE FILM AND PATTERN FORMING METHOD USING THE COMPOSITION
申请人:INASAKI Takeshi
公开号:US20130004888A1
公开(公告)日:2013-01-03
An object of the present invention is to provide an actinic ray-sensitive or radiation-sensitive resin composition that can form independent line patterns with high resolution and excellent shapes and shows excellent resist performances including roughness characteristics, and to provide an actinic ray-sensitive or radiation-sensitive film and a pattern forming method using the composition.
The actinic ray-sensitive or radiation-sensitive resin composition contains a compound (P) that contains at least one phenolic hydroxyl group and at least one group in which a hydrogen atom of a phenolic hydroxyl group is substituted with a group represented by the following General Formula (1) (the respective symbols in the formula represent the same definitions as in the claims and the specification).
(Dipropylamino)-tetrahydronaphthofurans: centrally acting serotonin agonists and dopamine agonists-antagonists
作者:Peter Stjernlöf、Chiu-Hong Lin、Clas Sonesson、Kjell Svensson、Martin W. Smith
DOI:10.1016/s0960-894x(97)10068-3
日期:1997.11
CNS-active aminotetralins containing phenolic moieties were transformed in a simple two-step procedure to the corresponding benzofurans. The compounds were tested in in vitro binding studies at serotonin 5-HT1A and 5-HT2 and dopamine D-2, D-3 and D-4 receptors. These studies revealed that the furan homologs showed overall lower affinities than the phenol counterparts. This was also reflected in vivo in biochemical studies. The benzofuran compounds retained most of the agonist/antagonist activities but with lower potency.
US8574814B2
申请人:——
公开号:US8574814B2
公开(公告)日:2013-11-05
Aminoalkohole, 2. Mitt.: Ein Verfahren zur Herstellung enantiomerenreiner pharmakologisch aktiver ?-Aminoalkohole
作者:C. R. Noe、M. Knollm�ller、P. G�rtner、W. Fleischhacker、E. Katikarides
DOI:10.1007/bf00813211
日期:1995.4
A synthesis of beta-aminoalcohols is described starting from racemic or enantiomerically pure alpha-hydroxynitriles which were O-protected using enantiomerically pure acetal type protective groups. Reduction with lithium aluminium hydride yielded O-protected beta-aminoalcohols. Whenever diastereomeric O-protected cyanohydrins could not be separated, the mixture was reduced and the resulting O-protected aminoalcohols were separated. Removal of the protective group using hydrogen chloride and methanol yielded enantiomerically pure beta-aminoalcohols or their corresponding hydrochlorides.