Patent number 376397 has been granted to CONSTELLATION PHARMACEUTICALS, INC. that is titled LSD1 INHIBITORS AND MEDICAL USES THEREOF. The patent applicant responded to this objection by stating that the claimed process for preparing a composition defines novel and non-obvious technical features and therefore cannot be considered as a mere use of a “known” process as disclosed in the cited references. This patent falls under the category of Chemical. Overall, this patent covers novel compounds of Formula (I or Ia’) and pharmaceutically acceptable salts thereof, which are useful for treating a variety of diseases, disorders or conditions, associated with LSD1.