... (S)-cheilanthifoline, not (S)-nandinine [7,30,31] If we assume that (S)-nandinine is produced in E californica, there may be no need for a catalyst from (S)-nandinine to (S) -stylopine However, nandinine could ... 1029 Stylopine synthase from Eschscholzia californica N Ikezawa et al E californica [27] Indeed, CYP80B1 has been cloned using this strategy, although other P450s involved in sanguinarine biosynthesis ... biosynthesized from two molecules of l-tyrosine via the central intermediate (S) -stylopine (S) -Stylopine, which has two methylenedioxy groups in rings A and D of its protoberberine skeleton, is produced...