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
Efficient synthesis of benzyl 2-(S)-[(tert-butoxycarbonyl)amino]-ω-iodoalkanoates
作者:Yohei Koseki、Haruka Yamada、Toyonobu Usuki
DOI:10.1016/j.tetasy.2011.03.002
日期:2011.3
The efficient synthesis of four benzyl 2-(S)-[(tert-butoxycarbonyl)amino]-omega-iodoalkanoates benzyl 2-(S)-[(tert-butoxycarbonyl)amino]-3-iodopropanoate, benzyl 2-(S)-[(tert-butoxycarbonyl)amino]-4-iodobutanoate, benzyl 2-(S)-[(tert-butoxycarbonyl)amino]-5-iodopentanoate, benzyl 2-(S)-[(tert-butoxycarbonyl)amino]-6-iodohexanoate) from natural or protected L-amino acids is described. (C) 2011 Elsevier Ltd. All rights reserved.
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.)
US9556119B2
申请人:——
公开号:US9556119B2
公开(公告)日:2017-01-31
Chichibabin and IsoChichibabin Pyridinium Syntheses of Isodesmosine, Desmosine, and their Derivatives
Selective Chichibabin/isoChichibabin pyridinium syntheses of isodesmosine and desmosine with protecting groups using 50 mol‐% Pr(OTf)3 in H2O/DMF (2:1) and H2O/CH2Cl2 (1:6) were achieved, The reaction of aldehyde and amine bearing one alanine afforded the protected isodesmosine‐(Ala)4 and desmosine‐(Ala)4 with no selectivity.
在H 2 O / DMF(2:1)和H 2 O / CH 2 Cl 2(1:6)中使用50 mol%Pr(OTf)3进行了带有保护基团的异地西莫辛和地西莫辛的选择性Chichibabin / isochichibabin吡啶鎓合成,得到保护的isodesmosine-(ALA)的醛和胺轴承一个丙氨酸的反应4和desmosine-(ALA)4没有选择性。