Interesting one @nataschachem
Actually, I'm a biologist and don't know much about chemistry but somehow I got to do some synthesis part in my PhD. Its basically the peptide synthesis, where one activator base and activator with the deprotector does the job. You explained it very well the polycondensation part, I can only connect it to my high school chemistry, only the literauture part. Thanks for sharing.
Cheers