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Sterol

LIPID_IDST0127

CHEM_NA(22E,24S)-24-METHYL-5α-CHOLESTA-7,22-DIEN-

3β-OL

COMMON_NASTELLASTEROL

MOL_FORMULAC28H46O

MOL_WT398

MELT_PT159-160゚C (114), ACETATE 181-182゚C (115)

BOIL_PT

OPT_ROT+18゚(114), ACETATE +6.4゚ (115)

REFRA_IND

DENSITY

SOLUBILITY

UV_SPEC

IR_SPECFREE = 970, 3300-3400cm-1 (114) ACETATE = 967,

1663cm-1 (115)

NMR_SPECFREE:1H-NMR(CDCl3): 3-CH=3.60(M), 7-CH=5.16(M),

18-CH3=0.54(S), 19-CH3=0.80(S), 21-CH3=1.01(D),

22-CH AND 23-CH=5.16(M), 26-CH3=0.84(D),

27-CH3=0.82(D), 28-CH3=0.91(D) (050)

MS_SPECFREE :

398[M+](22%),383(8%),365(1%),355(3%),300(13%),299(1

0%),271(100%),255(34%),246(25%),231(13%),229(20%),2

13(17%) (050) ACETATE:

440[M+](47%),425(16%),397(9%),380(6%),365(11%),342(

21%),337(7%),313(100%),288(25%),273(7%),255(64%),25

3(14%)

NOTE_SPEC

SOURCE海綿動物 AXINELLA CANNABINA (050), ヒトデ

ASTERIAS AMURENSIS(115),A.RUBENS

(C-24位立体配置不明)(117),ウリ科植物(052/116)

BIOL_ACTIV

NOTE

1998年7月17日305 / 486 ページ