public runGetAccessjwtTokenSheduler() {
    this.getAccessTokenIntervalId =
    setInterval(() => {this.updateAccessjwtToken().subscribe()},
    AccessTokenLifeTime - 5000);
}

Uncaught SyntaxError: Unexpected identifier

const AccessTokenLifeTime = 15000;

@Injectable()
export class SchedulerService {

  private static _authService: AuthorizationService = null;

  private static AccessTokenTimer: any;

  constructor(private authService: AuthorizationService) {
    SchedulerService._authService = authService;
  }

  public static stopUpdateAccessJwtTokenLoop() {
    clearInterval(SchedulerService.AccessTokenTimer);
  }

 public static runUpdateAccessJwtTokenLoop() {
    SchedulerService.AccessTokenTimer = setInterval(() => {
      console.log("Update access Jwt token loop is working.");
     if (AuthorizationService.isAuthorized && SchedulerService._authService != null) {
        SchedulerService._authService.updateAccessjwtToken().subscribe();
     }
   }, AccessTokenLifeTime - 5000);
  }
}

var source = Rx.Observable
    .interval(500 /* ms */)
    .timeInterval();

var subscription = source.subscribe(
    function (x) {
        console.log('Next: ' + x);
    },
    function (err) {
        console.log('Error: ' + err);
    },
    function () {
        console.log('Completed');
    });

// => Next: {value: 0, interval: 500}
// => Next: {value: 1, interval: 500}
// => Next: {value: 2, interval: 500}
// => Completed