They are going to develop it anyway, it's 1940's technology. If Iran developed a peaceful nuclear program, with Israeli help, it would be very difficult for the Ayatollah to then convince the Iranian people that they must enhance the program to weapons grade because of the threat from Israel. And even if they did, wouldn't it be better to have developed relations prior to that day?
Yemen's Houthi rebels commit to peace plan in letter to UN chief, BBC reports (Haaretz)
from the article: 'Azerbaijan granted Israel access to air bases on Iran border'