Down through Azerbajan, Uzbekistan, Iran, Kuwait, Bahrain, UAE.
Non-Etops, so never more than 420NM from an Adequate, though in this case, never more than 45 minutes from a company designated Alternate.
I think that Uzbekistan is not exactly on this route (quite offset to the East), but it doesn't matter too much...
However EK doesn't seem to serve many destinations between Moscow and Tehran along the route (possibly Larnaca a bit more to the West?), so that would mean quite a large territory to cover before reaching a suitable commercial station capable to meet the tech aircraft and assist with passengers and so on... It wouldn't look "too good" to justify why half way down route, due to an engine failure, the aircraft had to land somewhere remote....?
What's the company policy in that regard?