FADH2-C4alpha-hydroperoxide + rifampicin + NADPH <=> rifampicin hemiaminal + FADH2 + NADP(+) + H2O + H(+)
fadh2-c4alpha-hydroperoxide + rifampicin + nadph <=> rifampicin hemiaminal + fadh2 + nadp(+) + h2o + h(+)