I wouldn't recommend it. Looking at the datasheets, the SL100 has some voltage ratings that are a good 20v or more higher than the maximum specs for the BD135. While it might work, it's a little risky, especially in an inverter circuit.
If you are ever looking for an equivalent transistor, look at the datasheets. Make sure the one you're replacing with has an equal or higher voltage rating and current rating. Also (obviously) make sure they're of the same type, and designed for the same application (switching, amplifying, etc). You can get all the info you need from the datasheets.