Synthesis and matrix metalloproteinase (MMP)-12 inhibitory activity of ageladine A and its analogs
作者:Naoki Ando、Shiro Terashima
DOI:10.1016/j.bmcl.2007.06.005
日期:2007.8
Ageladine A (1) and its analogs 2-10 were expeditiously synthesized by featuring the biosynthetic route proposed for I (for 1-10) and by employing 2-(N-t-butoxycarbonylamino)imidazol-4-carbaldehyde as the starting material (for 1-8). From MMP-12 inhibitory activity assay, it appeared evident that the two bromine atoms and the three NH groups (1-NH, 14-NH, and 15-NH2) were indispensable for 1 to exhibit excellent activity. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of novel ageladine A analogs showing more potent matrix metalloproteinase (MMP)-12 inhibitory activity than the natural product
作者:Naoki Ando、Shiro Terashima
DOI:10.1016/j.bmcl.2009.07.099
日期:2009.9
By employing a previously established synthetic scheme, the synthesis described in the title was carried out in order to explore the substituent effects in the pyrrole ring of ageladine A on MMP-12 inhibitory activity. It became evident that a halogen atom (Br or Cl) at the 2-position and an additional bromine atom at the 4-position are highly effective for improving the inhibitory activity. These studies led us to discover three novel ageladine A analogs (4a. c, o) showing more potent MMP-12 inhibitory activity than the natural product. (C) 2009 Elsevier Ltd. All rights reserved.
Synthesis and Matrix Metalloproteinase-12 Inhibitory Activity of Ageladine A Analogs
作者:Naoki Ando、Shiro Terashima
DOI:10.1248/cpb.59.579
日期:——
Synthesis of the 37 ageladine A analogs was accomplished by employing the total synthetic route of natural ageladine A previously explored by us. From the matrix metalloproteinase-12 (MMP-12) inhibitoryactivity assay carried out using the novel analogs, it appeared evident that the halogen atom at the 2-position of pyrrole ring was essential for the inhibitoryactivity and that the introduction of