Sodium Methoxide → 9-Deaza-9-(3-thienylmethyl)guanine
反応式
C([N:5]([C:13]1[C:17]([CH2:18][C:19]2[CH:23]=[CH:22][S:21][CH:20]=2)=[CH:16][NH:15][C:14]=1[C:24]([O:26]C)=O)[C:6]([NH:8]C(OC)=O)=[NH:7])(OC)=O.C[O-].[Na+]>CO>[NH2:7][C:6]1[NH:8][C:24](=[O:26])[C:14]2[NH:15][CH:16]=[C:17]([CH2:18][C:19]3[CH:23]=[CH:22][S:21][CH:20]=3)[C:13]=2[N:5]=1参加物
4
実験手順
Methyl 3-(N,N′-bis-carbomethoxyguanidinyl)-4-(3-thienylmethyl)-1H-pyrrole-2-carboxylate, obtained from Example 23 (3.94 g, 0.01 mol), sodium methoxide (1.62 g, 0.03 mol) and methanol (100 mL) were stirred together and boiled under reflux for six hours. The solvent was evaporated in vacuo and the residue was treated with water (200 mL) containing acetic acid (10 mL). The solid was collected by filtration and crystallized from ethanol to give 2.1 g (85%) of 2-amino-7-(3-thienylmethyl)-4-oxo-3H,5H-pyrrolo[3,2-d]pyrimidine as pale-yellow needles, mp 222-224° C. with gas evolution, followed by resolidification and remelting at 268-270° C. (lit.1 271-272° C.).
後処理
- temperatureunder reflux for six hours
- customThe solvent was evaporated in vacuo
- additionthe residue was treated with water (200 mL)
- additioncontaining acetic acid (10 mL)
- filtrationThe solid was collected by filtration
- customcrystallized from ethanol
出典と根拠
- ORDレコード
- ord-3d5a073953724abda82353a3156d414c
- 出典データセット
- uspto-grants-2005_09
- 特許番号
- US06946554B2
反応ノート
読み込み中…