NOVEL IMMUNOSUPPRESSIVE BUTENAMIDES

被引:15
作者
AXTON, CA [1 ]
BILLINGHAM, MEJ [1 ]
BISHOP, PM [1 ]
GALLAGHER, PT [1 ]
HICKS, TA [1 ]
KITCHEN, EA [1 ]
MULLIER, GW [1 ]
OWTON, WM [1 ]
PARRY, MG [1 ]
SCOTT, S [1 ]
STEGGLES, DJ [1 ]
机构
[1] ELI LILLY & CO,LILLY RES CTR LTD,WINDLESHAM GU20 6PH,SURREY,ENGLAND
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1992年 / 17期
关键词
D O I
10.1039/p19920002203
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
2-[4-(1,1-Dimethylethyl)phenyl]thiophene 12 was carboxylated using butyllithium and carbon dioxide to give 5-[4-(1,1-dimethylethyl)phenyl]thiophene-2-carboxylic acid 13. Conversion of the acid 13 using diphenyl phosphazidate and triethylamine gave 5-[4-(1,1-dimethylethyl)phenyl]thiophene-2-carbonyl azide 14, which was rearranged in toluene at 110-degrees-C with loss of nitrogen to give the isocyanate 15; this in turn was treated with sodium 1-cyanoprop-1-ene 2-oxide 16 in tetrahydrofuran to give 2-cyano-N-{5-[4-(1,1-dimethylethyl)phenyl]thiophen-2-yl}-3-hydroxybut-2-enamide 17. Analogous chemistry has been utilised to synthesize both phenylheteroarylbutenamides and phenylbutenamides which display immunosuppressive activity towards proliferating concanavalin A-stimulated T-lymphocytes.
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页码:2203 / 2213
页数:11
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