(L)-ethyl lactate → 2-({4-[6-Methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enyl}-phenoxy-phosphinoyloxy)-propionic Acid Ethyl Ester

HRID 33683

反応式

HRID 33683 の反応式
[C:1]1([O:7][P:8]([CH2:11][C:12]([CH3:35])=[CH:13][CH2:14][C:15]2[C:16]([O:28][CH2:29][CH2:30][Si:31]([CH3:34])([CH3:33])[CH3:32])=[C:17]3[C:21](=[C:22]([CH3:26])[C:23]=2[O:24][CH3:25])[CH2:20][O:19][C:18]3=[O:27])(=[O:10])[OH:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:36]([O:41][CH2:42][CH3:43])(=[O:40])[C@H:37]([CH3:39])O.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>N1C=CC=CC=1>[CH2:42]([O:41][C:36](=[O:40])[CH:37]([O:10][P:8]([CH2:11][C:12]([CH3:35])=[CH:13][CH2:14][C:15]1[C:16]([O:28][CH2:29][CH2:30][Si:31]([CH3:34])([CH3:32])[CH3:33])=[C:17]2[C:21](=[C:22]([CH3:26])[C:23]=1[O:24][CH3:25])[CH2:20][O:19][C:18]2=[O:27])([O:7][C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1)=[O:9])[CH3:39])[CH3:43]

参加物

5

実験手順

To a solution of {4-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enyl}-phosphonic acid monophenyl ester (25 mg, 0.048 mmol) and ethyl (S)-(−)-lactate (34 mg, 0.288 mmol) in pyridine (1 mL) was added PyBOP (125 mg, 0.24 mmol). The solution was stirred at room temperature for 16 hours and concentrated. The residue was purified by RP HPLC using a C18 column with a gradient of H2O, 0.1% TFA-acetonitrile, 0.1% TFA to provide 24 mg (83%) of the desired product. MS (m/z) 641 [M+Na]+.

後処理

  1. concentrationconcentrated
  2. customThe residue was purified by RP HPLC

出典と根拠

ORDレコード
ord-7ea7a5c6e21047b2a59c113d92e3dcad
出典データセット
uspto-grants-2008_09
特許番号
US07429565B2

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