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Potassium Iodide → methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)-2-oxo ethylamino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

HRID 85629
Notes
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Reaction equation

HRID 85629 reaction equation
[NH2:1][C@:2]12[CH2:37][CH2:36][C@@H:35]([C:38]([CH3:40])=[CH2:39])[C@@H:3]1[C@@H:4]1[C@@:17]([CH3:20])([CH2:18][CH2:19]2)[C@@:16]2([CH3:21])[C@@H:7]([C@:8]3([CH3:34])[C@@H:13]([CH2:14][CH2:15]2)[C:12]([CH3:23])([CH3:22])[C:11]([C:24]2[CH:33]=[CH:32][C:27]([C:28]([O:30][CH3:31])=[O:29])=[CH:26][CH:25]=2)=[CH:10][CH2:9]3)[CH2:6][CH2:5]1.Cl[CH2:42][C:43]([N:45]([CH3:47])[CH3:46])=[O:44].P([O-])([O-])([O-])=O.[K+].[K+].[K+].[I-].[K+]>C(#N)C>[CH3:46][N:45]([CH3:47])[C:43](=[O:44])[CH2:42][NH:1][C@:2]12[CH2:37][CH2:36][C@@H:35]([C:38]([CH3:40])=[CH2:39])[C@@H:3]1[C@@H:4]1[C@@:17]([CH3:20])([CH2:18][CH2:19]2)[C@@:16]2([CH3:21])[C@@H:7]([C@:8]3([CH3:34])[C@@H:13]([CH2:14][CH2:15]2)[C:12]([CH3:22])([CH3:23])[C:11]([C:24]2[CH:25]=[CH:26][C:27]([C:28]([O:30][CH3:31])=[O:29])=[CH:32][CH:33]=2)=[CH:10][CH2:9]3)[CH2:6][CH2:5]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 4875Potassium IodideHCID 62657Potassium Phosphate, TribasicHCID 758862-chloro-N,N-dimethylacetamideHCID 68357865methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-amino-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Product 1

HCID 86676594
methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)-2-oxo ethylamino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate
Yield 52%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
120 °C

Procedure

A mixture of methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-amino-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate (50 mg, 0.092 mmol), 2-chloro-N,N-dimethylacetamide (33.5 mg, 0.276 mmol), potassium phosphate (78 mg, 0.368 mmol) and potassium iodide (36.6 mg, 0.221 mmol) in acetonitrile (1 mL) was heated at 120° C. for 33 h in a sealed tube. The reaction mixture was quenched with distilled water (5 mL) and extracted with DCM (3×5 mL). The combined organic layers were dried over sodium sulfate, filtered and concentrated under reduced pressure to provide the title compound as a pale yellow solid (30 mg, 52%). LCMS: m/e 629.51 (M+H)+, 3.03 min (method 10). The product was used in the next step without further purification.

Workup

  1. customThe reaction mixture was quenched with distilled water (5 mL)
  2. extractionextracted with DCM (3×5 mL)
  3. dry with materialThe combined organic layers were dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-44529002305547538c8c62289208e1c4
Source dataset
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08846647B2

Reaction notes

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