Organic phosphorus compounds. 1. 4-(Benzothiazol-2-yl)benzylphosphonate as potent calcium antagonistic vasodilator
摘要:
A series of 4-(benzothiazol-2-yl)benzylphosphonic acid dialkyl ester derivatives were synthesized and evaluated for coronary vasodilatory activity by Langendorff's method in the isolated guinea pig heart. Many of the phosphonic acid dialkyl esters exhibited vasodilatory activity and calcium antagonism comparable with those of diltiazem hydrochloride, whereas phosphonic acid 1b and its nonphosphonated precursor 7a were inactive. These results indicate the necessity of the diethoxyphosphinyl moiety for vasodilatory activity. Substitution of the benzothiazole ring with a variety of substituents did not significantly enhance the activity of the unsubstituted compound. Compound 10b (KB-944) was chosen for detailed pharmacological evaluation.
A series of 4-(benzothiazol-2-yl)benzylphosphonic acid dialkyl ester derivatives were synthesized and evaluated for coronary vasodilatory activity by Langendorff's method in the isolated guinea pig heart. Many of the phosphonic acid dialkyl esters exhibited vasodilatory activity and calcium antagonism comparable with those of diltiazem hydrochloride, whereas phosphonic acid 1b and its nonphosphonated precursor 7a were inactive. These results indicate the necessity of the diethoxyphosphinyl moiety for vasodilatory activity. Substitution of the benzothiazole ring with a variety of substituents did not significantly enhance the activity of the unsubstituted compound. Compound 10b (KB-944) was chosen for detailed pharmacological evaluation.
타우 응집체에 높은 선택성을 가지는 화합물, 이를 포함하는 타우 표적 프로브, 및 이의 제조 방법
申请人:KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 한국과학기술연구원(319980077518) BRN ▼209-82-03522
公开号:KR20190090448A
公开(公告)日:2019-08-02
본 발명은 타우 응집체에 우수한 결합력을 나타내어 치매를 포함한 퇴행성 뇌질환의 조기 진단과, 이의 예방 및 치료에 유용한 하기 화학식 1로 표시되는 화합물, 이의 제조 방법 및 이를 포함하는 약학적 조성물에 관한 것이다.