| Sterol |
| LIPID_ID | ST0477 |
| CHEM_NA | 4ƒÀ-HYDROXY-18-ACETOXY-1-OXO-5ƒÀ,6ƒÀ-EPO |
| XYWITHA-2,24-DIENOLIDE |
| COMMON_NA | WITHACNISTIN |
| MOL_FORMULA | C30H40O7 |
| MOL_WT | 512 |
| MELT_PT | 130-135ßC(1078) |
| BOIL_PT |
| OPT_ROT | [ƒ¿]27/D=+123ß(C=1.21)(1078) |
| REFRA_IND |
| DENSITY |
| SOLUBILITY | ƒGƒ^ƒm[ƒ‹, ƒƒ^ƒm[ƒ‹ - …(9:1), ΖûƒG[ƒeƒ‹, |
| ƒNƒƒƒzƒ‹ƒ€, ƒzƒ‹ƒ€ƒAƒ~ƒh ‚ɉ—n¡ |
| UV_SPEC | ƒÉmax 215mƒÊ(ƒÃ=16,100)(1078) |
| IR_SPEC | ƒÉmax 2.81, 2.93, 3.31, 5.78, 5.92, 8.05, 9.63ƒÊ(1078) |
| NMR_SPEC | 3.82d(10.0,C-2),3.04dd(10.0,6.0,C-3),6.24d,5.78d(C-1 |
| 8),8.60[-0.08](C-19),8.90d(6.5)[0.04](C-21),8.08[0.07] |
| (C-27),8.08[0.25](C-28),7.93(-COCH3)[ |
| ],ĢĄ=Ą[CDCl3-benzene(1:1)]-Ą(CDCl3)(1078) |
| MS_SPEC | m/e 125(C7H9O2),181(C11H17O2),M+ |
| 512(C30H40O7),167(C9H11O3),154(C8H10O3),141(C |
| 7H9O3),124(C7H8O2),389(C23H33O5) (1078) |
| NOTE_SPEC | ORD(c=0.033)[ƒÓ]/600=+461ß,[ƒÓ]/589=+461ß,[ƒÓ]/50 |
| 0=+778ß,[ƒÓ]/400=+2305ß, |
| [ƒÓ]/368=+4148ß,[ƒÓ]/343=+1440ß,ƒÉ/0=334mƒÊ,[ƒÓ] |
| /317.5=-1095ß,ƒÉ/0=307mƒÊ, |
| [ƒÓ]/272=+7202ß,[ƒÓ]/261=+5992ß,[ƒÓ]/250=+4206ß,[ |
| SOURCE | EA•¨B |
| ACNISTUS ARBORESCENS(L.)‚Ì—t¡ (1078) |
| BIOL_ACTIV |
| NOTE | •ªŽq—Ê 512.64¡ |
| THE |
| ACETATE,m.p.131-132ß,[ƒ¿]25/D=+180ß(C=1.90);UvƒÉ |
| max 217mƒÊ(ƒÃ=15,500); IrƒÉmax 3.31, 5.76, 5.90, |
| 1998”N7ŒŽ17“ú | 427 / 486 ƒy[ƒW |