发明名称 |
STEREOSPECIFIC MANUFACTURE OF AZETIDINONES |
摘要 |
Chiral azetidinones II (R1 optionally substituted phenyl, R2 = C1-C4 alkyl or aryl, R3 = H or an N-protecting group) are prepared by reacting compound III (R4 = carboxy protecting group) with an organometallic derivative and treating the resultant dianion with a compound IV. The azetidinones II are stereospecifically prepared by the above process and may be converted to azetidinones VIII (R5 = hydroxy protecting group), useful in the preparation of penems. <IMAGE> |
申请公布号 |
JPS6118759(A) |
申请公布日期 |
1986.01.27 |
申请号 |
JP19850133166 |
申请日期 |
1985.06.20 |
申请人 |
KONSHIGURIO NAJIONARE DERE RICHIERUKE;CARLO ERBA SPA |
发明人 |
KAINERI GIANFURANKO;KONTENTO MITSUSHIERU;GIAKOMINI DARIA;PANUNCHIO MAURO;FURANSESUCHI GIOFUANII |
分类号 |
C07D205/08;C07D477/00;C07D487/08;C07D499/06;C07D499/88;C07D499/897;C07F7/10;C07F7/18 |
主分类号 |
C07D205/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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