CH3CH3ONHH2NOHNONH2ONHCH3H3COHNONH2ONHOHOHNCH3CH3ONHOOHONONHHOOHNNHNONHHNNHH2NOHNH3CCH3ONHOHOHNOOHONHHNNHH2NOHNOOHONHOSOOOHOHNSH3CONHOHNNHOHNSCH3ONHOOHOHNONH2HNOSCH3NHOOHHNOH3CCH3NHONHHNNH2HNONHOOHHNONOH3CNHONH2HNONHHNH2NNHOCH3HNOOH2NNHOONH2HNOH3CH3CNHOOHNH2