61123-13-5Relevant articles and documents
SYNTHESIS OF 6-11 SUBSTANCE P FRAGMENT ANALOGS CONTAINING ENANTIOMERS OF NATURALLY OCCURRING AMINO ACIDS
Janecka, Anna,Koziolkiewicz, Wiktor,Wasiak, Tadeusz
, p. 761 - 765 (2007/10/02)
Seven analogs of 6-11 Substance P fragment in which one or more naturally occurring amino acids were replaced by their enantiomers were synthesized.Three of them: 6, D-Phe8, His9>SP(6-11), 6, D-Phe8, D-Leu10>SP(6-11) and 6, D-Phe8, D-Leu10>SP(6-11) are shown to be 6>SP(6-11) antagonists.If applied 30 sec before 6>SP(6-11) they reduce the contraction of isolated rat jejunum caused by that hexapeptide.
Catalytic Transfer Hydrogenation in Synthesis of Substance P
Sivanandaiah, K. M.,Rangaraju, N. S.
, p. 787 - 792 (2007/10/02)
The utility of catalytic transfer hydrogenation (CTH) in the synthesis of longer peptides has been demonstrated by the stepwise synthesis of Substance P in the solution phase.The technique of CTH using formic acid as a hydrogen donor provides a facile method for the removal of protecting groups such as benzyloxycarbonyl and nitro in the synthesis of medium-sized peptides also.Except in the case of glutaminyl peptides where the purity and yield are affected to some extent by cyclization, the products are generally pure requiring minimum purification and the yields are good.
SYNTHESIS OF HEXAPEPTIDES FRAGMENT OF SUBSTANCE P AND ITS PYROGLUTAMYL-ANALOG
Lipkowski, Andrzej W.,Majewski, Tadeusz,Drabarek, Stefania
, p. 1707 - 1712 (2007/10/02)
Syntheses of Substance P, C-terminal hexapeptide fragment (Gln-Phe-Phe-Gly-Leu-Met-NH2), and its pyroglutamyl-analog which is formed as a by-product on decoupling step in synthesis of C-terminal hexapeptide fragment of substance P are described.