| 发明名称 |
PROCESS FOR 3-EXOMETHYLENECEPHAM SULFOXIDE ESTERS. |
| 摘要 |
3-EXOMETHYLENECEPHAM SULFOXIDE ESTERS ARE OBTAINED IN IMPROVED YIELDS VIA CYCLIZATION OF 3-METHYL-2(4-CHLOROSULFINYL-2-OXO-3-AMINO-1-AZETIDINYL)-3-BUTENOIC ACID ESTERS UNDER ANHYDROUS CONDITIONS WITH A LEWIS ACID TYPE FRIEDEL-CRAFTS CATALYST IN THE PRESENCE OF A NITRO COMPOUND, E.G., NITROMETHANE, NITROETHANE, NITROPROPANE OR NITROBENZENE.
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| 申请公布号 |
MY131165(A) |
申请公布日期 |
2007.07.31 |
| 申请号 |
MYPI9200002 |
申请日期 |
1992.01.02 |
| 申请人 |
ELI LILLY AND COMPANY. |
发明人 |
FRANK BROWN, JR.;FRANCIS ORERENYO GINAH;LEONARD LARRY WINNEROSKI, JR. |
| 分类号 |
B01J27/135;C07D501/02;C07B61/00;C07D501/00;C07D501/08;C07D501/14;C07D501/22 |
主分类号 |
B01J27/135 |
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