| 摘要 |
<p>The salt of GA<Sub>4</Sub> and/or GA<Sub>7</Sub> with an amine of formula R<Sup>1</Sup>CH<Sub>2</Sub>NHR<Sup>2</Sup> wherein R' is optionally substituted phenyl, thienyl or pyridyl and R<Sup>2</Sup> is alkyl or alkynyl. The salts are useful in the preparation of GA<Sub>4</Sub>/GA<Sub>7</Sub> and their separation from GA<Sub>3</Sub>.</p> |
