import re
subject = '[]{}&&& ThisIs(OK)'
regex = re.compile(r'\([^)]*\)|([^a-z()]+)')
# put Group 1 captures in a list
matches = [group for group in re.findall(regex, subject) if group]

print("\n" + "*** Matches ***")
if len(matches)>0:
	for match in matches:
	    print (match)