0 B31R4.3581086242 O[C@@H]1CC=2[C@@](CC1)(C)[C@@H]3C(=CC2)[C@H]4[C@@](CC3)(C)[C@H](CC4)[C@@H](CCCC(C)C)C D0331 [0,0,0,0,0,0|0,0,4]=4