发明名称 |
METHOD FOR OBTAINING OF OCTAPEPTIDEAMIDOSULPHATE ESTER OF HOLESTOKININ- PANCREOCIMINE |
摘要 |
<p>A process for the preparation of L-aspartyl-(O-sulfato-L-tyrosyl)-L-methionyl-glycyl-L-tryptophyl-L-met hionyl-L-aspartyl-L-phenylalanine amide, which comprises treating the protected octapeptide amide of the general formula (II) <IMAGE> wherein X is BOC, Cbz or Ddz, Y is OtBu, OBzl or OH and W is OtBu, OBzl or OH, in the presence of an ether with an excess of the complex compound of sulfur trioxide and a tertiary amine containing at least one alkyl group, converting the obtained sulfate ester of the protected octapeptide amide into an alkali metal salt and simultaneously removing the formyl group from the tryptophan unit by reacting the sulfate ester with an alkali metal hydroxide, and then splitting off the remaining protective groups by acidolysis.</p> |
申请公布号 |
BG29869(A3) |
申请公布日期 |
1981.02.16 |
申请号 |
BG19770036189 |
申请日期 |
1977.05.03 |
申请人 |
RICHTER GEDEON VEGYESZETI GYAR RT. |
发明人 |
PENKE,BOTOND;BALASPIRI,LAJOS;PALLAI,PETER;KOVACS, KALMAN;VARRO,VINCZE;LONOVICS,JANOS;VARGA,LASLO;DOBO,GYOERGY;IVANYI,GAZA;KOVACS,LAJS;LOEW,JUDIT |
分类号 |
C07K1/113;A61K38/00;A61K38/08;C07K1/00;C07K7/06;C07K14/595;(IPC1-7):C07C103/52 |
主分类号 |
C07K1/113 |
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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