Preparation of enantiomerically pure protected unsaturated α-amino acids from a new serine derived zinc–copper reagent
作者:Michael J. Dunn、Richard F. W. Jackson
DOI:10.1039/c39920000319
日期:——
Treatment of the iodoalanine derived zinc reagent 1 with Knochel's soluble copper salt (CuCN·2LiCl) allows the preparation of a reactive copper reagent 2 which couples in moderate to good yield with allyl halides to give protected unsaturated α-amino acids in a single step from easily available precursors.
Synthesis of the Angiotensin-Converting Enzyme Inhibitors (−)-A58365A and (−)-A58365B from a Common Intermediate
作者:Derrick L. J. Clive、Don M. Coltart、Yuanxi Zhou
DOI:10.1021/jo9822941
日期:1999.3.1
(-)-A58365A (1) and (-)-A58365B (2), which are inhibitors of angiotensin-converting enzyme, were synthesized from the subunits 9 and 10. These were coupled, and the resulting individual amides 17a,b were converted by ozonolysis into aldehydes 18a,b, which underwent cyclodehydration to the enamides 19a,b. Treatment with a stannane served to generate the vinyl stannanes 20a,b, from which ketones 22a
Synthesis of potential β-turn bicyclic dipeptide mimetics
作者:Jack E. Baldwin、Christopher Hulme、Christopher J. Schofield、Alison J. Edwards
DOI:10.1039/c39930000935
日期:——
The syntheses of four diastereoisomeric bicyclic lactams, intended for analysis as β-turn-inducing mimetics, are described; the crystal structure of one derivative has been reported.
描述了四种非对映异构双环内酰胺的合成,旨在
Synthesis and analysis of Leu-enkephalin analogues containing reverse turn peptidomimetics
作者:Timothy D.W. Claridge、Christopher Hulme、Richard J. Kelly、Victor Lee、Ian A. Nash、Christopher J. Schofield
DOI:10.1016/0960-894x(96)00055-8
日期:1996.2
the synthesis and H-1 n.m.r. analysis of peptidomimetics of Leu-enkephalin containing bicyclic lactams is described.
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.)