�擪ƒy�[ƒW‚Ö ’¼‘O‚̃y�[ƒW‚Ö ŽŸ‚̃y�[ƒW‚Ö �Å�Iƒy�[ƒW‚Ö

Polycyclic compound

LIPID_ID

PY0006

CHEM_NA

2,3,6A,8,9,9A-HEXAHYDRO-4-METHOXYCYCLOPEN

TA[C]FURO[3',2':4,5]FURO[2,3-H][1]BENZOPYRAN-1,

11-DIONE

COMMON_NA

AFLATOXIN B2

MOL_FORMULA

C17H14O6

MOL_WT

314

MELT_PT

BOIL_PT

>310ßC DEC.( ) 286-289ßC (005/109/110)

OPT_ROT

[ƒ¿]23/D=-492ß(O,0.1 in CHCl3)(109/110)

REFRA_IND

DENSITY

SOLUBILITY

UV_SPEC

ƒÉmax(EtOH) 265, 363nm (ƒÃ=11700, 23400) (005)

IR_SPEC

NMR_SPEC

1H-NMR: 6.51(s,1H), 4.02ƒÂ(s,3H) 13C-NMR:155.8,

115.6, 200.0, 34.6, 28.5, 176.6, 105.5, 160.8, 90.0,

165.8,105.9, 152.0, 113.3, 42.8, 30.6, 66.9,

56.6(OCH3) (009/017)

MS_SPEC

M/Z 314[M]-, 313[M-H]-, 299[M-CH3]- (045)

NOTE_SPEC

SOURCE

Žq”X‹Û–å, ƒqƒzƒ~ƒPƒX�j, ‘p�¶•sŠ®‘S‹Û–Ú‚Ì Aspergillus

Flavus ‚Æ Aspergillus parasiticus ‚©‚ç’P—£

BIOL_ACTIV

”­ƒKƒ“�«

NOTE

MeOH’†‚Å�Â�FŒuŒõ‚ð‚à‚‰©�FŒ‹�»�B‚»‚Ì‘¼‚Ì•¶Œ£ :

006/010/011/013/014/015/016/018/019/020/021

/028/029/030/032/034/035/036/037/038/039/

1998”N7ŒŽ17“ú

14 / 35 ƒy�[ƒW