Macrosphelides C and D, novel inhibitors of cell adhesion.
نویسندگان
چکیده
During the purification of macrosphelides A and B in the cultured broth of FO-5050, we discovered two new 1 6-memberedmacrocyclic compounds, macrosphelides C (1) and D (2) (Fig. 1). This paper describes physicochemical properties structural determination and biological activities of 1 and 2. The fermentation of strain FO-5050 was carried out in the same way as reported previously1}. Compound 1 was purified by silica gel chromatography (CHC13 CH3OH, 50: 1 v/v) and HPLC (Senshu Pac Pegasil OCT. 1997
منابع مشابه
Absolute stereostructures of cell adhesion inhibitors, macrosphelides H and L, from Periconia byssoides OUPS-N133.
Macrosphelide L has been isolated from a strain of Periconia byssoides originally separated from the sea hare Aplysia kurodai, and the absolute stereostructures of this material and macrosphelide H, previously undetermined, have been elucidated on the basis of spectroscopic analyses using 1D and 2D NMR techniques and some chemical transformation. (R)-Methyl 3-p-bromobenzoyloxy-5-oxohexanoate ha...
متن کاملSynthesis, Anti-Inflammatory and Anti- Nociceptive Activities and Cytotoxic Effect of Novel Thiazolidin-4-ones Derivatives as Selective Cyclooxygenase (COX-2) Inhibitors
Objective(s): Nowadays, COX- 2 inhibitors such as valdecoxib are removed from the market because of their cardiovascular toxicity and their potential to increase the risk of strokes. In response to this, medicinal chemists have attempted to synthesize new classes of COX-2 Inhibitors. Materials and Methods: In this study, three novel analogues of thiazolidin-4-ones derivatives ...
متن کاملThe Effect of Eight- Week High-Intensity Interval Training on the Expression of Cardiac Angiostatin and Focal adhesion Kinase Proteins at Left Ventricle in Diabetic Rats
Background: Diabetes can increase cardiovascular disease by altering the equilibrium between angiogenic stimulants and inhibitors of angiogenesis. In this study, we investigated the effect of High-Intensity Interval Training (HIIT) on angiostatin and focal adhesion kinase (FAK-1) in left ventricle cardiomyocytes in diabetic rats. Methods: In this experimental study, 24 male Wistar rats were ra...
متن کاملA Comparative Study of Serum Level of Vascular Cell Adhesion Molecule-1 (sVCAM-1), Intercellular Adhesion Molecule-1(ICAM-1) and High Sensitive C - reactive protein (hs-CRP) in Normal and Pre-eclamptic Pregnancies
متن کامل
Changing Roles of Matrix Metalloproteases and Their Inhibitors, TIMPs, During Tumor Progression and Angiogenesis
Inhibition of matrix-metalloproteinases (MMPs) by tissue inhibitors of metalloproteinases (TIMPs) has been shown in vivo to decrease metastasis and tumor-associated angiogenesis. Our laboratory is interested in understanding the role of these proteins at the pericellular microenvironment of tumor and endothelial cells. Secretion of MMPs by tumor cells enables the migration, invasion and metasta...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of antibiotics
دوره 50 10 شماره
صفحات -
تاریخ انتشار 1997