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Hydrochloric Acid → 1-[(E)-[(E)-3-[(3S,5R,8R,9S,10S,13R,14S,17R)-3,14-dihydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2-methylprop-2-enylidene]amino]guanidine

HRID 725259
ノート
印刷プレビュー

反応式

HRID 725259 の反応式
C(=O)(O)O.[NH2:5][NH:6][C:7]([NH2:9])=[NH:8].Cl.[OH:11][C@H:12]1[CH2:33][CH2:32][C@@:31]2([CH3:34])[C@H:14]([CH2:15][CH2:16][C@@H:17]3[C@@H:30]2[CH2:29][CH2:28][C@@:27]2([CH3:35])[C@:18]3([OH:36])[CH2:19][CH2:20][C@@H:21]2/[CH:22]=[C:23](\[CH3:26])/[CH:24]=O)[CH2:13]1>O.O1CCOCC1>[NH:6](/[N:5]=[CH:24]/[C:23](/[CH3:26])=[CH:22]/[C@H:21]1[CH2:20][CH2:19][C@:18]2([OH:36])[C@H:17]3[C@H:30]([CH2:29][CH2:28][C@:27]12[CH3:35])[C@:31]1([CH3:34])[C@@H:14]([CH2:13][C@@H:12]([OH:11])[CH2:33][CH2:32]1)[CH2:15][CH2:16]3)[C:7]([NH2:9])=[NH:8]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 10666253(E)-3beta,14beta-dihydroxy-21-methyl-5beta-pregn-20-ene-21-carboxaldehydeHCID 178513185HCID 178513185、化合物

生成物 1

HCID 1765375471-[(E)-[(E)-3-[(3S,5R,8R,9S,10S,13R,14S,17R)-3,14-dihydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2-methylprop-2-enylidene]amino]guanidine収率 68.3%

試薬・触媒・溶媒 2

HCID 962Water溶媒
HCID 312751,4-Dioxane溶媒2 回

実験手順

A mixture of 0.50 g of aminoguanidine hydrogencarbonate in 10 ml of water and 30 ml of dioxane was made acid to pH 3 with 3N HCl. A solution of 0.95 g of (E)-3β,14β-dihydroxy-21-methyl-5β-pregn-20-ene-21-carboxaldehyde (Prepn. 1) in 10 ml of dioxane was added at room temperature. After 3 days the mixture was evaporated to dryness under reduced pressure. The crude product was purified by flash chromatography (SiO2) using chloroform/methanol/28% ammonium hydroxide 80/20/3 as the eluant: the fractions containing the title compound were collected and evaporated to dryness. The residue was ground with diethyl ether and ethanol to give 0.75 g of the title compound (I-aa) as a white solid.

後処理

  1. customAfter 3 days the mixture was evaporated to dryness under reduced pressure
  2. customThe crude product was purified by flash chromatography (SiO2)
  3. additionthe fractions containing the title compound
  4. customwere collected
  5. customevaporated to dryness

出典と根拠

ORDレコード
ord-6280d3e33d7e42d29f4bb246ba4d1112
出典データセット
uspto-grants-1998_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05705662

反応ノート

読み込み中…

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