An Efficient Enantioselective Synthesis of the D1 Agonist (5aR,11bS)-4,5,5a,6,7,11b-Hexahydro-2-propyl-3-thia- 5-azacyclopenta[c]phenanthrene-9,10-diol (A-86929)
Process for preparing chiral tetracyclic dopaminergic compounds
申请人:Abbott Laboratories
公开号:US05659037A1
公开(公告)日:1997-08-19
A process for preparing a chiral tetracyclic compound of formula: ##STR1## wherein R is hydrogen or a C.sub.1 -C.sub.6 -alkyl group and Z is oxygen, sulfur or --CH.dbd.CH--, the compounds having uses as dopamine agonists. The process involves reacting a chiral starting material and subsequent chiral intermediates in a series of chirality-preserving synthetic reactions.
Catalytic enantioselective synthesis of A-86929, a dopamine D1 agonist
作者:Saumen Hajra、Sukanta Bar
DOI:10.1039/c1cc10263j
日期:——
A-86929, a dopamine D1 agonist was synthesized with 95% ee in five steps with overall yield of 56% viacatalytic enantioselective one-pot aziridination followed by Friedel–Crafts cyclization and a mild Pictet–Spengler cyclization protocol.
The invention relates to liquid-crystalline compounds of the formula I
in which
R
1
, R
2
, A
1
, A
2
, A
3
, A
4
, Z
1
, Z
2
, Z
3
, V, a, b and c have the meanings indicated in Claim
1
, and to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.
The invention relates to substituted adamantane compounds, pharmaceutical compositions thereof, processes for their preparation, and methods for inhibiting sphingosine kinase and for treating or preventing hyperproliferative disease, inflammatory disease, or angiogenic disease.