Neue 2,5-Diaminotetraline, Verfahren zu ihrer Herstellung und ihre Verwendung als Arzneimittel
申请人:BOEHRINGER INGELHEIM KG
公开号:EP0402923A2
公开(公告)日:1990-12-19
Die Erfindung betrifft neue 2,5-Diaminotetraline, Verfahren zur ihrer Herstellung und ihre Verwendung als Arzneimittel.
本发明涉及新的 2,5-二氨基四氢萘,其制备工艺及其作为药物的用途。
US5196454A
申请人:——
公开号:US5196454A
公开(公告)日:1993-03-23
Method of treating disorders of the dopaminergic systems using
申请人:Boehringer Ingelheim KG
公开号:US05196454A1
公开(公告)日:1993-03-23
The invention relates to novel 2,5-diaminotetralines of the formula: ##STR1## wherein R1, R2, R3 and R4 are defined herein, processes for preparing them and their use in pharmaceutical compositions. The novel 2,5-diaminotetralines are useful in treating diseases caused by disorders of the dopaminergic systems.
Intramolecular Diels-Alder reaction of dinitro-olefin derivatives of furan for the preparation of a versatile tool: 3,7-dinitro-11-oxatricycloundec-9-ene
furfuraldehyde followed by an intramolecular Diels-Alder reaction allowed the obtention of the title compound 1 in good yield with excellent stereoselectivity. Aromatization, ethercleavage and stereocontrolled oxidation reactions give evidence of the synthetic versatility of this adduct in the preparation of ergot alkaloids and valienamine bicyclic analogues.