Most raws are derived from either progesterone or cholesterol. Wiki shows a few of the chemical reactions specific to select AAS and rest assured there is NO WAY this can be done without a FORMAL lab, using the appropriate equipment, catalysts, co-factors and precursor/substrate compounds.
We are not talking about a little "meth" lab fella', the manufacturing of AAS is a complex process that mandates a reasonably sound knowledge of chemistry and access to the appropriate supplies.
(No doubt this fact contributes to the BUNK many receive thru UGLs)