申请人:The Administrators of The Tulane
University Educational Fund
公开号:EP0203031A2
公开(公告)日:1986-11-26
Novel compositions of the formula
wherein
A represents an L, D or DL amino-acid selected from the group consisting of Ala, Val, Phe, p-CI-Phe, Trp, Pro, Ser, Thr, Glu, Gly, Beta Ala, Abu, N-Me Ala, 5-F-Trp, 5-Br-Trp, 5-Cl-Trp, their acetylated derivatives or a pharmaceutically acceptable acid addition salt thereof;
B represents an L, D or DL amino acid amide selected from the group consisting of Thr NH2, Val NH,, Pro NH2, HO-Pro NH2, Ser NH2, Tyr NH2, Trp NH2, 5-F-Trp NH,, For-Trp NH., Ala NH2, Gly NH2, Me Ala NH2;
X represents L-Phe or L-Tyr,
Y represents L-Thr or L-Val;
Z is L, D or DL-5-F-Trp, 5-Br-Trp, 5-C1-Trp, 5-I-Trp or D-Trp; and
C" and C' represent L or D Cys, Abu, Asp or Lys; provided that where C' is Cys, C" is also Cys and where C' or C" are other than Cys, C" is different from C' and is other than Cys and the pharmaceutically acceptable acid addition salts thereof; are useful as agents for inhibiting the release of growth hormone, for the treatment of gastrointestinal disorders and for therapy of certain cancers and the management of diabetes. These biologically active octapeptides all possess a terminal amino acid amide at position 8 and are prepared by solid phase methods.
式中的新型组合物
式中
A 代表选自以下组别的 L、D 或 DL 氨基酸:Ala、Val、Phe、p-CI-Phe、Trp、Pro、Ser、Thr、Glu、Gly、Beta Ala、Abu、N-Me Ala、5-F-Trp、5-Br-Trp、5-Cl-Trp、它们的乙酰化衍生物或其药学上可接受的酸加成盐;
B 代表选自 Thr NH2、Val NH、Pro NH2、HO-Pro NH2、Ser NH2、Tyr NH2、Trp NH2、5-F-Trp NH、For-Trp NH、Ala NH2、Gly NH2、Me Ala NH2 所组成的组的 L、D 或 DL 氨基酸酰胺;
X 代表 L-Phe或 L-Tyr、
Y 代表 L-Thr 或 L-Val
Z 是 L、D 或 DL-5-F-Trp、5-Br-Trp、5-C1-Trp、5-I-Trp 或 D-Trp;以及
C "和 C'代表 L 或 D Cys、Abu、Asp 或 Lys;条件是当 C' 是 Cys 时,C "也是 Cys,当 C' 或 C "不是 Cys 时,C "不同于 C',也不是 Cys 及其药学上可接受的酸加成盐;可用作抑制生长激素释放、治疗胃肠道疾病、治疗某些癌症和糖尿病的药物。这些具有生物活性的八肽都在第 8 位具有一个末端氨基酸酰胺,并通过固相方法制备。