"Doronin" is a Russian surname that is pronounced with the following IPA transcription: /dɔˈrɔnin/. The first syllable, "do", is pronounced with an open-mid back rounded vowel /ɔ/. The second syllable, "ro", is pronounced with a slightly rolled "r" /r/. The third syllable, "nin", begins with a palatal nasal /ɲ/ and ends with an unrounded front vowel /i/. The correct spelling for this phonetic transcription is "doronin" and can be a bit tricky for non-native speakers to pronounce correctly.