Synthesis of 2,3-Dinor-5,6-dihydro-15F2t-isoprostane
摘要:
A concise synthesis of the 15-F-2t-isoprostane urinary metabolite 2, a potential marker for systemic oxidative stress, is described. This synthesis confirmed the structure of this important product of human metabolism. The key transformation is the rhodium-mediated diastereoselective cyclization of diazo ketone 4, followed by cyclopropane ring opening with thiophenol and Lewis acid. Material prepared by the synthesis outlined here will be used to develop an antibody-based assay for clinically quantifying systemic oxidative stress.
Synthesis of 2,3-Dinor-5,6-dihydro-15F2t-isoprostane
摘要:
A concise synthesis of the 15-F-2t-isoprostane urinary metabolite 2, a potential marker for systemic oxidative stress, is described. This synthesis confirmed the structure of this important product of human metabolism. The key transformation is the rhodium-mediated diastereoselective cyclization of diazo ketone 4, followed by cyclopropane ring opening with thiophenol and Lewis acid. Material prepared by the synthesis outlined here will be used to develop an antibody-based assay for clinically quantifying systemic oxidative stress.
[EN] PYRROLOPYRIDAZINE DERIVATIVES<br/>[FR] DERIVES DE PYRROLOPYRIDAZINE
申请人:FUJISAWA PHARMACEUTICAL CO
公开号:WO2004063197A1
公开(公告)日:2004-07-29
The invention relates to compound of the formula (I) or its salt, in which R1, R2, R3 and R4 are as defined in the description, their use of as medicament, the process for their preparation and use for the treatment of PDE-IV or TNF-α mediated diseases.
The invention relates to compound of the formula (I) or its salt, in which R
1
, R
2
, R
3
and R
4
are as defined in the description, their use of as medicament, the process for their preparation and use for the treatment of PDE-IV or TNF-α mediated diseases.