Structure-activity relationship of bromoeudistomin D, a powerful Ca2+ releaser in skeletal muscle sarcoplasmic reticulum
摘要:
Bromoeudistomin D and 9-methyl-7-bromoeudistomin D which have a beta-carboline skeleton are powerful Ca2+ releasers from skeletal muscle sarcoplasmic reticulum exhibiting caffeine-like properties. We examined the effects of bromoeudistomin D analogues on Ca(2+)-induced Ca2+ release from skeletal muscle sarcoplasmic reticulum. Among bromoeudistomin D analogues, the Ca(2+)-releasing activities of carboline derivatives were higher than those of carbazole derivatives, suggesting that a carboline skeleton is significantly important for the manifestation of Ca(2+)-releasing activity and Ca2+ sensitivity of Ca(2+)-induced Ca2+ release. On the contrary, the analogues which have a carbazole skeleton and bromine at C-6 inhibit both Ca(2+)- and caffeine-induced Ca2+ release. 9-Methyl-substitution of the analogue elevated its Ca(2+)-releasing activity. Moreover, there is a close correlation between the enhancement of [3H]ryanodine binding to sarcoplasmic reticulum by the analogues and the activation of Ca2+ release by them. Bromoudistomin D analogues may provide valuable information about the structure-function relationship of the ryanodine receptor/Ca2+ release channels in skeletal muscle sarcoplasmic reticulum.
Structure-activity relationship of bromoeudistomin D, a powerful Ca2+ releaser in skeletal muscle sarcoplasmic reticulum
摘要:
Bromoeudistomin D and 9-methyl-7-bromoeudistomin D which have a beta-carboline skeleton are powerful Ca2+ releasers from skeletal muscle sarcoplasmic reticulum exhibiting caffeine-like properties. We examined the effects of bromoeudistomin D analogues on Ca(2+)-induced Ca2+ release from skeletal muscle sarcoplasmic reticulum. Among bromoeudistomin D analogues, the Ca(2+)-releasing activities of carboline derivatives were higher than those of carbazole derivatives, suggesting that a carboline skeleton is significantly important for the manifestation of Ca(2+)-releasing activity and Ca2+ sensitivity of Ca(2+)-induced Ca2+ release. On the contrary, the analogues which have a carbazole skeleton and bromine at C-6 inhibit both Ca(2+)- and caffeine-induced Ca2+ release. 9-Methyl-substitution of the analogue elevated its Ca(2+)-releasing activity. Moreover, there is a close correlation between the enhancement of [3H]ryanodine binding to sarcoplasmic reticulum by the analogues and the activation of Ca2+ release by them. Bromoudistomin D analogues may provide valuable information about the structure-function relationship of the ryanodine receptor/Ca2+ release channels in skeletal muscle sarcoplasmic reticulum.
신규한 9에이치-카바졸 에스테르 유도체, 이의 제조방법 및 이를 함유하는 혈관 질환의 예방 또는 치료용 조성물
申请人:The Industry & Academic Cooperation in Chungnam National University (IAC) 충남대학교산학협력단(220040084104) BRN ▼314-82-09264
公开号:KR101497435B1
公开(公告)日:2015-03-03
본 발명은 신규한 9 H -카바졸 에스테르 유도체, 이의 제조방법 및 이를 함유하는 혈관 질환의 예방 또는 치료용 조성물에 관한 것으로서, 상기 신규한 9 H -카바졸 에스테르 유도체는 혈소판 응집 억제 효과와 생체 내 안정성이 매우 우수하여 혈관 질환의 예방 또는 치료용 의약 조성물로 용이하게 이용가능하다.
This is the translation of the text into Chinese:
本发明涉及一种新的9H-卡巴唑酯衍生物,其制备方法以及用于预防或治疗血管疾病的组合物,所述新的9H-卡巴唑酯衍生物具有出色的血小板凝聚抑制作用和生物内稳定性,可方便地用作预防或治疗血管疾病的药物组合物。
Stetter; Schwarz, Justus Liebigs Annalen der Chemie, 1958, vol. 617, p. 54,58