Is one allowed to say Kedusha if he started his amidah a few minutes before the hazan started his repetition ( saying the first two berachoth very slow)?

A – Yes, if he says it together with everyone at the right place
Q – This is new for me… you mean to say that if I am davening amidah and I’m in sync with the hazans repetition, then I could say kedusha if I just finished the bracha of m’haye hameytim with the hazzan?
A – Indeed. This is how the chatam Sofer Said and those who came after him