已经开发了一种用于苄基 C(sp 3 )-H 键氧化的有效电化学方法。各种甲基芳烃、甲基杂芳烃和苄基(杂)亚甲基可以在未分割的电池中以中等至极好的收率转化为所需的芳醛和芳酮,使用 O 2作为氧源,高氯酸镥作为电解质。在循环伏安法研究、18 O 标记实验和自由基捕获实验的基础上,提出了一种可能的单电子转移机制用于电氧化反应。
1
The present invention relates to a novel fatty acid derivative of formula (I), wherein R
1
is acyl group; R
2
is acyl(lower)alkyl; R
3
is hydrogen, aryl(lower)alkyl, etc.; R
4
is acyl(lower)alkyl; and X is —O—, —NH— or formula (II) [wherein R
5
is lower alkyl, etc.]; and a pharmaceutically acceptable salt thereof, which is useful as a medicament; the processes for the preparation of said fatty acid derivative or a salt thereof; a pharmaceutical composition comprising said fatty acid derivative or a pharmaceutically acceptable salt thereof; etc.
Naphthyl imidazolyl compounds and pharmaceutical compositions
申请人:Hoechst Aktiengesellschaft
公开号:US04778817A1
公开(公告)日:1988-10-18
Compounds of the formula I ##STR1## in which R.sup.1, R.sup.2 and Y have the indicated meanings, their physiologically tolerated acid addition salts, and a process for the preparation of these compounds are described. The compounds inhibit thromboxane synthetase and can thus be used as medicaments.
The present invention relates to a novel fatty acid derivative of the following formula:
1
wherein R
1
is acyl group;
R
2
is acyl(lower)alkyl;
R
3
is hydrogen, aryl(lower)alkyl, etc;
R
4
is acyl(lower)alkyl; and
X is —O—, —NH— or
2
[wherein R
5
is lower alkyl, etc];
and a pharmaceutically acceptable salt thereof, which is useful as a medicament; the processes for the preparation of said fatty acid derivative or a salt thereof;
a pharmaceutical composition comprising said fatty acid derivative or a pharmaceutically acceptable salt thereof; etc.