Isodesmosine 是一种 1,2,3,5-四取代吡啶鎓基氨基酸,被弹性纤维的主要成分弹性蛋白中的四种赖氨酸衍生物取代。弹性蛋白在为组织和身体器官提供弹性方面起着至关重要的作用。在慢性阻塞性肺病 (COPD) 和相关疾病的进展阶段,异地间苯甲酸已被证明是一种有用的弹性蛋白降解生物标志物。目前的工作报告了一种有效的克级异键素合成方法,从容易获得的 Boc-Asp-O t Bu 开始,使用温和的反应条件。
Isodesmosine is a crosslinking pyridinium amino acid of elastin and is an attractive biomarker for the diagnosis of chronic obstructive pulmonary disease (COPD). In this paper, we describe the totalsynthesis of isodesmosine. The key features of this synthesis are stepwise and regioselective palladium-catalyzed Negishi and Sonogashiracross-couplingreactions for efficient introduction of amino acid
crosslinking amino acid of elastin and is an attractive biomarker for the diagnosis of chronic obstructive pulmonary disease (COPD). Herein, we report an application of the Chichibabinpyridinesynthesis to the total synthesis of isodesmosine. Specifically, the appropriate protected lysine and the corresponding aldehyde were reacted using Pr(OTf)3 in H2O/MeOH.
1,2,3,5-四取代的吡啶鎓氨基酸异十二烷酸是弹性蛋白的交联氨基酸,是诊断慢性阻塞性肺疾病(COPD)的有吸引力的生物标记。在本文中,我们报道了Chichibabin吡啶合成在异十二烷总合成中的应用。具体地,使用Pr(OTf)3在H 2 O / MeOH中使适当的被保护的赖氨酸和相应的醛反应。
Biomimetic Chichibabin Pyridine Synthesis of the COPD Biomarkers and Elastin Cross-Linkers Isodesmosine and Desmosine
The tetrasubstituted pyridinium amino acids isodesmosine and desmosine are cross-linkers of elastin and are attractive biomarkers for the diagnosis of chronic obstructive pulmonary disease (COPD). In this study, the biomimetic total synthesis of isodesmosine and desmosine via a lanthanide-promoted Chichibabin pyridine synthesis using the corresponding aldehyde and amine hydrochloride is reported.
METHOD FOR PRODUCING DESMOSINE, ISODESMOSINE AND DERIVATIVES THEREOF
申请人:Sophia School Corporation
公开号:EP2952504B1
公开(公告)日:2017-10-11
PROCESS FOR PREPARING DESMOSINE, ISODESMOSINE, AND DERIVATIVES THEREOF
申请人:SOPHIA SCHOOL CORPORATION
公开号:US20150376127A1
公开(公告)日:2015-12-31
A process for preparing a compound represented by the following general formula (I) or a salt thereof, which comprises reacting lysine or a protective product thereof or a salt thereof with allysine or a protective product thereof in the presence of a specific trifluoromethane sulfonate to obtain a compound having pyridine ring or a salt thereof.
(wherein, in the above-described general formula (I), one of R
1
and R
2
is —CH
2
CH
2
CH
2
CH(NH
2
)COOH group, and the other is hydrogen atom. And wherein, in the above-described general formula (I), one, or two or more of hydrogen atom, one, or two or more of carbon atom, or one, or two or more of nitrogen atom may be substituted with their isotope.)