Cytochrome P450 monooxygenase; part of the gene cluster that mediates the biosynthesis of the brasilane terpene glycosides brasilane D and E (PubMed:32936132). The biosynthesis starts with the activity of the terpene cyclase braA that converts farnesyl pyrophosphate into the sesquiterpene alcohol trichobrasilenol (PubMed:32936132). Subsequently, trichobrasilenol is glycosylated by the O-glycosyltransferase braB putatively using UDP-GlcNAc as sugar donor to yield brasilane A (PubMed:32936132). The latter then undergoes two rounds of oxidation performed by the cytochrome P450 monooxygenase braC (PubMed:32936132). In the first round braC hydroxylates C-12 forming brasilane D, which serves as substrate in the second round to establish the epoxide at the bond between C-5 and C-10 and oxidize the alcohol at C-12 to an aldehyde leading to the final product brasilane E (PubMed:32936132). Secondary metabolite biosynthesis. Belongs to the cytochrome P450 family.