Journal of the Chemical Society. Perkin transactions I p. 1749 - 1755 (1996)
Update date:2022-07-29
Topics:
Hitotsuyanagi, Yukio
Matsumoto, Yuji
Sasaki, Shin-Ichi
Suzuki, Jin
Takeya, Koichi
Yamaguchi, Kentaro
Itokawa, Hideji
RA-VII 1 was thionated with Davy reagent methyl 6 or Davy reagent p-tolyl 7 to afford novel thionopeptides, [Tyr-6-ψ(CS-NH)-D-Ala-1]RA-VII 8, [D-Ala-1-ψ(CS-NH)-Ala-2; Tyr-3-ψ(CS-NH)-Ala-4]RA-VII 9 and [Ala-2-ψ(CS-NH)-Tyr-3; Tyr-3-ψ(CS-NH)-Ala-4]RA-VII 10 in addition to known analogues [Tyr-3-ψ(CS-NH)-Ala-4]RA-VII 4 and [Tyr-3-ψ(CS-NH)-Ala-4; Tyr-6-ψ(CS-NH)-D-Ala-1]RA-VII 5. Thionopeptide 4 was reduced with nickel borohydride to give reduced peptide 11. An X-ray analysis and an NMR study revealed that compound 11 adopts a different conformation within the 18-membered-ring moiety from the predominant solution conformation of peptide 1 and of thionopeptides 4, 5, 8-10, which would explain the loss in activity of compound 11.
View MoreTianjin Tongde Biological Technology Co., Ltd.
Contact:86-22-23309138
Address:Room 402, bulidingE3 Detection certification park, XiQingDistrict, Tianjin City
Nanjing Raise Pharmatech Co., Ltd
website:http://www.raisechem.com
Contact:+86-25-58649566
Address:B381,No.606,Ningliu Road,Jiangbei New Area,Nanjing,Jiangsu Province,China
Shanghai Dianyang Industry Co.,ltd
Contact:+86 21 6492 4669
Address:Chejing RD, Songjiang District, Shanghai, China
LinHai Cina Chemical Co., LTD.
Contact:0576-85580989
Address:Pharma-chem zone,Duqiao,Linhai,Zhejiang,China
Shandong united-rising pharmaceutical cooperation.,ltd.
Contact:008653187965009
Address:171No., Jing5 Road, Shizhong District, Jinan, China
Doi:10.1039/d1dt00919b
(2021)Doi:10.1016/j.tetlet.2014.02.079
(2014)Doi:10.1021/jm00014a003
(1995)Doi:10.1002/chem.201304657
(2014)Doi:10.1055/s-0034-1378453
(2014)Doi:10.1021/jo01268a028
(1968)
