申请人:SUMITOMO PHARMACEUTICALS COMPANY, LIMITED
公开号:EP0070204A2
公开(公告)日:1983-01-19
Penem compounds are of the formula:
where R1 is H or 1-hydroxyethyl, wherein the -OH may be protected by a protecting group, e.g. alkoxycarbonyl,
R2 is one of 21 aliphatic, aromatic or heterocyclic groups shown, and
R3 is H or a protecting group for the -COO, e.g. alkyl.
Preparative methods depend on the nature of R2 and include:
(a) heating a compound of
and optionally removing protecting groups.
Methods are described of synthesing the compound (II) from a compound.
The Compounds (1) are useful antibacterial compounds.
青霉烯化合物的化学式如下
其中 R1 为 H 或 1-羟乙基,其中 -OH 可由保护基团(如烷氧羰基)保护、
R2 是所示 21 个脂肪族、芳香族或杂环族基团之一,以及
R3 是 H 或 -COO 的保护基团,如烷基。
制备方法取决于 R2 的性质,包括
(a) 加热
并选择性地去除保护基团。
描述了从化合物合成化合物 (II) 的方法。
化合物(1)是有用的抗菌化合物。