Synthesis of trans-8-chloro-5-methyl-1- [4- (pyridin-2-yloxy) -cyclohexyl] -5,6-dihydro-4h-2,3,5,10b-tetraazabenzo [e] azulene and crystalline forms of it
A process for synthesizing a compound of formula I, comprising reacting a compound of formula II or III with a compound of formula VI **(See formula)**