申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP1741697A1
公开(公告)日:2007-01-10
According to the present invention, crystals comprising (2R)-2-propyloctanoic acid and an amine, which can be used as bulk drugs for safely orally administrable solid preparations with keeping the pharmacological effect, are provided. Among these crystals, the crystal with dibenzylamine per se is particularly useful as bulk drug for pharmaceuticals and can be used as an intermediate to produce (2R)-2-propyloctanoic acid having an optical purity of more than 99.5%e.e. which has not been obtained.
根据本发明,提供了由(2R)-2-丙辛酸和胺组成的晶体,这些晶体可用作安全口服固体制剂的原药,并保持药理作用。在这些晶体中,本身含有二苄胺的晶体特别适用于作为药物散剂,并可用作中间体来生产光学纯度超过 99.5%e.e.的(2R)-2-丙辛酸。