Ketene Addition on Thienoanellated Thiazines and Thiazepines with Subsequent Ring Enlargement Reaction to Thieno[2,3-b][1,4]thiazocines and Thieno[2,3-b][1,4]thiazonines
作者:Thomas Erker
DOI:10.3987/com-94-6740
日期:——
Reaction of alkylthiothieno[2,3-b][1,4]thiazine derivatives or alkylthiothieno[2,3-b][1,4]thiazepine derivatives (4, 5, 12, 16, and 24) with substituted acetyl chlorides in the presence of triethylamine led to azeto[1,2-d]thieno[2,3-b][1,4]thiazine derivatives and azeto[1,2-d]thieno[2,3-b][1,4]thiazepine derivatives. Some of them were ring opened by treatment with trifluoroacetic acid to give the thieno[2,3-b][1,4]thiazocine derivatives (27 - 30) and the thieno[2,3-b][1,4]thiazonine derivative (32), respectively. 6-Ethyl-1H-thieno[2,3-b][1,4]thiazine-2(3H)-thione (13), after reaction with alpha-chlorophenylacetyl chloride and triethylamine, afforded the thiazolo[2,3-b][1,4]thiazine derivative (34).
Erker Thomas, Heterocycles, 38 (1994) N 7, S 1627-1639
作者:Erker Thomas
DOI:——
日期:——
Erker Thomas, Arch. Pharm, 328 (1995) N 4, S 313-316
作者:Erker Thomas
DOI:——
日期:——
Studien zur Chemie von thienoanellierten O,N- und S,N-haltigen Heterocyclen, 9. Mitt.: Synthese und Calciumkanal blockierende Wirkung eines thienoanalogen KT-362
作者:Thomas Erker
DOI:10.1002/ardp.19953280404
日期:——
Ausgehend vom Ester 5 wird über mehrere Stufen 4‐[3‐[2‐(3,4‐Dimethoxyphenyl)‐ethylamino]‐propanoyl]‐2‐ethyl‐4,5,6,7‐tetrahydrothieno[2,3‐b]‐[1,4]thiazepin (3) aufgebaut, eine thienoanaloge Verbindung zum Calciumkanalblocker KT‐362. Es wird über die Ca2+‐antagonistische Wirkung dieses Thiazepinderivats berichtet.