| 发明名称 |
Process for preparing benzopyran compounds |
| 摘要 |
PCT No. PCT/EP93/03257 Sec. 371 Date May 26, 1995 Sec. 102(e) Date May 26, 1995 PCT Filed Nov. 19, 1993 PCT Pub. No. WO94/12492 PCT Pub. Date Jun. 9, 1994Disclosed herein is a process for preparing a compound of structure (I): <IMAGE> (I) which comprises cyclization of a compound of structure (II) <IMAGE> (II)
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| 申请公布号 |
US5616721(A) |
申请公布日期 |
1997.04.01 |
| 申请号 |
US19950446666 |
申请日期 |
1995.05.26 |
| 申请人 |
SMITHKLINE BEECHAM PLC |
发明人 |
JOHNSON, GRAHAM;SMITH, NEIL;GEEN, GRAHAM R.;MANN, INDERJIT S.;NOVACK, VANCE |
| 分类号 |
C07C233/24;C07C257/04;C07D;C07D257/04;C07D405/04;(IPC1-7):C07D405/04 |
主分类号 |
C07C233/24 |
| 代理机构 |
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