Position of coordination of the lithium ion determines the regioselectivity of demethylations of 3,4-dimethoxymorphinans with L-selectride.
Position of coordination of the lithium ion determines the regioselectivity of demethylations of 3,4-dimethoxymorphinans with L-selectride.
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锂离子的配位位置决定了 3,4-二甲氧基吗啡喃与 L-selectride 去甲基化的区域选择性。
DOI:
10.1021/ol050433c
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发表时间:
2005
期刊:
影响因子:
5.2
通讯作者:
Coop,Andrew
中科院分区:
文献类型:
--
作者:
Wu,Huifang;Thatcher,LinnN;Bernard,Denzil;Parrish,DamonA;Deschamps,JeffreyR;Rice,KennerC;MacKerellJr,AlexanderD;Coop,Andrew
L-Selectride is an efficient agent for the 3-O-demethylation of opioids and is known to cleave the least hindered methoxyl group in a molecule. The treatment of a 3,4-dimethoxymorphinan containing a 6-ketal with L-Selectride gave selective 4-O-demethylation, rather than cleavage of the less hindered 3-methoxyl. In contrast, a 3,4-dimethoxymorphinan lacking a 6-ketal gave selective 3-O-demethylation, suggesting that the regiochemistry of L-Selectride-mediated O-demethylation can be manipulated through altering the position of coordination of the lithium ion.
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DOI:
--
发表时间:
1981
期刊:
Archives Internationales de Physiologie et de Biochimie
影响因子:
--
作者:
R. Vanholder;N. Lameire;W. Eeckhaut;S. Ringoir
通讯作者:
S. Ringoir
影响因子:
39.2
作者:
M. Gault;T. C. Rudwal;W. D. Engles;J. Dossetor
通讯作者:
J. Dossetor
影响因子:
8.3
作者:
E. Muirhead
通讯作者:
E. Muirhead
影响因子:
--
作者:
J. H. Stewart;S. McCarthy;B. Storey;B. Roberts;E. Gallery;J. Mahony
通讯作者:
J. Mahony
影响因子:
19.6
作者:
F. Finkelstein;J. Hayslett
通讯作者:
J. Hayslett