I want to synthesize the peptides in liquid medium by using amino acids, but I don't have idea of synthesis of Pepetide in liquid medium. Please suggest if anyone has any idea about this.
Well, of course you can do the usual syntheses also with having your half-built peptide scaffold swimming around instead of having it pinned to a substrate, but it is much harder to do it in a precise way, so probably your yield will decay while a larger fraction will end up as a side product and also you will probably have more in-process losses. In principle the usual coupling agents and protecting groups will still do their job.