Acetic Acid → 4-Methanesulfonyloxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-4-(pyrrolidin-1-ylmethyl)indol-2-yl]isoindolinone

HRID 21308Notes

Reaction equation

HRID 21308 reaction equation
[CH3:1][S:2]([O:5][C:6]1[C:14]([O:15][CH3:16])=[CH:13][C:12]([C:17]2[N:18]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[C:19]3[C:24]([CH:25]=2)=[C:23]([CH:26]=O)[CH:22]=[CH:21][CH:20]=3)=[C:11]2[C:7]=1[CH2:8][NH:9][C:10]2=[O:35])(=[O:4])=[O:3].[NH:36]1[CH2:40][CH2:39][CH2:38][CH2:37]1.C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(#N)C>[CH3:1][S:2]([O:5][C:6]1[C:14]([O:15][CH3:16])=[CH:13][C:12]([C:17]2[N:18]([C:28]([O:30][C:31]([CH3:33])([CH3:34])[CH3:32])=[O:29])[C:19]3[C:24]([CH:25]=2)=[C:23]([CH2:26][N:36]2[CH2:40][CH2:39][CH2:38][CH2:37]2)[CH:22]=[CH:21][CH:20]=3)=[C:11]2[C:7]=1[CH2:8][NH:9][C:10]2=[O:35])(=[O:4])=[O:3]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 31268PyrrolidineHCID 5049666Sodium triacetoxyborohydrideHCID 866283254-Methanesulfonyloxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-4-formylindol-2-yl]isoindolinone

Product 1

HCID 866283284-Methanesulfonyloxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-4-(pyrrolidin-1-ylmethyl)indol-2-yl]isoindolinoneYield 35.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

In a similar manner to Step 2 of Example 6, 4-methanesulfonyloxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-4-formylindol-2-yl]isoindolinone (0.299 g, 0.597 mmol) was dissolved in acetonitrile (15.0 mL), and the solution was treated with pyrrolidine (0.997 mL, 11.9 mmol), acetic acid (0.684 mL, 11.9 mmol) and sodium triacetoxyborohydride (0.633 g, 2.99 mmol), followed by purification of the residue by flash column chromatography (chloroform/methanol=3/1) to obtain 4-methanesulfonyloxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-4-(pyrrolidin-1-ylmethyl)indol-2-yl]isoindolinone (0.117 g, yield 35%).

Workup

  1. customfollowed by purification of the residue by flash column chromatography (chloroform/methanol=3/1)

Sources & evidence

ORD record
ord-d7f028aefaa048da87fa397fcb3af310
Source dataset
uspto-grants-2010_06
Patent number
US07745641B2

Reaction notes

Loading…