Acetic Acid → Ethyl (3S, 4aR, 6S, 8aR) 6-(2-cyano-3-methyl-phenylamino)-2-methoxycarbonyl-1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline-3-carboxylate

HRID 583843Notes

Reaction equation

HRID 583843 reaction equation
O=[C:2]1[CH2:11][CH2:10][CH:9]2[CH:4]([CH2:5][CH:6]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[N:7]([C:12]([O:14][CH3:15])=[O:13])[CH2:8]2)[CH2:3]1.[NH2:21][C:22]1[CH:29]=[CH:28][C:27](C)=[CH:26][C:23]=1[C:24]#[N:25].[C:31](O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CCCCCC.C(OCC)(=O)C>[C:24]([C:23]1[C:26]([CH3:31])=[CH:27][CH:28]=[CH:29][C:22]=1[NH:21][C@H:2]1[CH2:11][CH2:10][C@@H:9]2[C@@H:4]([CH2:5][C@@H:6]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[N:7]([C:12]([O:14][CH3:15])=[O:13])[CH2:8]2)[CH2:3]1)#[N:25]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 2427782-Amino-5-methylbenzonitrileHCID 5049666Sodium triacetoxyborohydrideHCID 148779783-Ethyl 2-Methyl 6-oxooctahydroisoquinoline-2,3(1H)-dicarboxylate

Product 1

HCID 131725057Ethyl (3S, 4aR, 6S, 8aR) 6-(2-cyano-3-methyl-phenylamino)-2-methoxycarbonyl-1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline-3-carboxylateYield 13%

Reagents, catalysts & solvents 1

HCID 21226206Ethyl acetate hexaneSolvent

Procedure

Following the procedures from Example 3A, and using 1.076 g (3.8 mmol) of ethyl 6-oxo-2-(methoxycarbonyl)-decahydroisoquinoline-3-carboxylate, 1.36 g (10.0 mmol) of 2-amino-5-methylbenzonitrile, 0.67 mL (12 mmol) of glacial acetic acid, and 1.14 g (5.4 mmol) of sodium triacetoxyborohydride, flash chromatography (silica gel, hexane-ethyl acetate 3:1) afforded 105 mg (13% yield) of the title compound.

Sources & evidence

ORD record
ord-5d906be7274746c586e3762f19a43525
Source dataset
uspto-grants-2005_08
Patent number
US06924294B2

Reaction notes

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