At some point, the Chile became submissive to Eastern Tujue instead, and as of the reign of the Jiali Khan Ashina Duobi, the Xueyantuo were ruled by Yishibo's grandson Yi'nan. However, Ashina Duobi was said to be a poor ruler, and by 627, several members of the Chile-Xueyantuo, Huige, and Bayegu () had rebelled. Ashina Duobi tried to send his nephew Ashina Yugu against Huige, but Ashina Yagu was defeated by the Huige chieftain Pusa (), while Xueyantuo defeated four other Eastern Tujue generals, and Ashina Duobi was not able to resubjugate the Chile rebels. Still, in 628, when these Chile tribes offered the title of khan to Yi'nan, Yi'nan did not initially dare to accept it. However, Emperor Taizong of Tang, hearing this and wanting to establish an alliance with Xueyantuo against Eastern Tujue, sent his general Qiao Shiwang () to Xueyantuo to create Yi'nan the Zhenzhupieqie Khan (or Zhenzhu Khan in short), and subsequently, a large number of Chile and Tujue tribes came under Yi'nan's rule. Subsequently, Tang and Xueyantuo often exchanged emissaries, and Xueyantuo grew stronger at Eastern Tujue's expense.