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发明公开
CN1863808A 青霉烷晶体及其制备方法 有权 转让 复审申请

青霉烷晶体及其制备方法
摘要：
本发明提供新的2α－甲基－2β－[(1，2，3－三唑－1－基)甲基]青霉烷－3α－羧酸二苯甲基酯(TMPB)－丙酮晶体用于制备2α－甲基－2β－[(1，2，3－三唑－1－基)甲基]青霉烷－3α－羧酸1，1－二氧化物二苯甲基酯(TAZB)；一种制备TMPB－丙酮晶体的方法，包括下列步骤：(A)浓缩含TMPB的有机溶剂溶液；(B)将所得浓缩物溶解在丙酮中；以及(C)从由此获得的丙酮溶液中析出TMPB－丙酮晶体；以及一种制备TAZB的方法，包括TMPB－丙酮晶体与氧化剂反应的步骤。
摘要（英）：

Novel 2alpha-methyl-2beta-[(1,2,3-triazol-1-yl)methyl]penam-3alpha-carboxylic acid benzhydryl ester (TMPB)-acetone crystals for use in producing 2alpha-methyl-2beta-[(1,2,3-triazol-1-yl)methyl]penam-3alpha-carboxylic acid 1,1-dioxide benzhydryl ester (TAZB); a process for producing TMPB-acetone crystals which comprises (A) the step of concentrating an organic solvent solution containing TMPB, (B)the step of dissolving the resultant concentrate in acetone, and (C) the step of crystallizing TMPB-acetone crystals from the acetone solution obtained; and a process for producing TAZB which comprises the step of reacting TMPB-acetone crystals with an oxidizing agent.

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