Acetic Acid → (2-{4-[6-Ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enylamino}-ethyl)-phosphonic acid diethyl ester

HRID 540723ノート

反応式

HRID 540723 の反応式
[CH2:1]([C:3]1[C:11]([CH3:12])=[C:10]2[C:6]([C:7](=[O:13])[O:8][CH2:9]2)=[C:5]([O:14][CH2:15][CH2:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[C:4]=1[CH2:21][CH:22]=[C:23]([CH3:26])[CH:24]=O)[CH3:2].C(O)(=O)C(O)=O.[CH2:33]([O:35][P:36]([CH2:41][CH2:42][NH2:43])(=[O:40])[O:37][CH2:38][CH3:39])[CH3:34].C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CN(C=O)C>[CH2:38]([O:37][P:36]([CH2:41][CH2:42][NH:43][CH2:26][C:23]([CH3:24])=[CH:22][CH2:21][C:4]1[C:5]([O:14][CH2:15][CH2:16][Si:17]([CH3:20])([CH3:18])[CH3:19])=[C:6]2[C:10](=[C:11]([CH3:12])[C:3]=1[CH2:1][CH3:2])[CH2:9][O:8][C:7]2=[O:13])(=[O:40])[O:35][CH2:33][CH3:34])[CH3:39]

参加物

6

反応物 4

HCID 176Acetic AcidHCID 2733595Diethyl (2-aminoethyl)phosphonate oxalateHCID 5049666Sodium triacetoxyborohydrideHCID 725636044-[6-Ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enal

生成物 1

HCID 72563615(2-{4-[6-Ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enylamino}-ethyl)-phosphonic acid diethyl ester収率 98.7%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

4-[6-Ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enal (19.7 mg, 0.052 mmol) and aminoethylphosphonic acid diethylester oxalate salt (15.6 mg, 0.057 mmol) were dissolved in DMF (0.5 mL). Acetic acid (15.7 mg, 0.263 mmol) was added, followed by sodium triacetoxyborohydride (22.3 mg, 0.105 mmol). After 4 hrs, the crude reaction mixture was purified by RP-HPLC (eluent: water/MeCN) to provide 27.7 mg (97%) of the desired product after lyophilization. 1H NMR (300 MHz, CDCl3): δ=0.04 (s, 9H), 1.14 (t, J=7.5 Hz, 3H), 1.26 (m, 2H), 1.30 (t, J=7.2 Hz, 6H), 1.95 (s, 3H), 2.19 (s, 3H), 2.23 (m, 2H), 2.68 (q, J=7.5 Hz, 2H), 3.18 (m, 2H), 3.53 (s, 2H), 4.13 (m, 4H), 4.28 (m, 2H), 5.15 (s, 2H), 5.51 (m, 1H) ppm; 31P NMR (121 MHz, CDCl3): δ=27.39 ppm; MS=540 [M++1].

後処理

  1. customthe crude reaction mixture
  2. customwas purified by RP-HPLC (eluent: water/MeCN)

出典と根拠

ORDレコード
ord-5d9252dae19f4dde9fb1fbda8be4e8e5
出典データセット
uspto-grants-2014_10
特許番号
US08871785B2

反応ノート

読み込み中…