Oxalic Acid → HCID 21268306, compound

HRID 565529Notes

Reaction equation

HRID 565529 reaction equation
ClCCC[O:5]C1C2C=CNC=2C=CC=1.[CH:15]1([CH2:18][O:19][C:20]2[CH:28]=[CH:27][CH:26]=[C:25]3[C:21]=2[C:22]([CH:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)=[CH:23][NH:24]3)[CH2:17][CH2:16]1.[CH:35]1([CH2:38][O:39][C:40]2[CH:48]=[CH:47][CH:46]=[C:45]3[C:41]=2[CH:42]=[CH:43][NH:44]3)C[CH2:36]1.Cl.O.N1CCC(=O)CC1.[OH-].[K+].[C:60]([OH:65])(=[O:64])[C:61]([OH:63])=[O:62]>[Pd].CO.C(OCC)(=O)C>[OH2:5].[C:60]([OH:65])(=[O:64])[C:61]([OH:63])=[O:62].[NH:44]1[C:45]2[C:41](=[C:40]([O:39][CH2:38][CH2:35][CH2:36][N:32]3[CH2:33][CH2:34][CH:29]([C:22]4[C:21]5[C:25](=[CH:26][CH:27]=[CH:28][C:20]=5[O:19][CH2:18][CH:15]5[CH2:16][CH2:17]5)[NH:24][CH:23]=4)[CH2:30][CH2:31]3)[CH:48]=[CH:47][CH:46]=2)[CH:42]=[CH:43]1

Participants

10

Reactant 6

HCID 971Oxalic AcidHCID 14797Potassium HydroxideHCID 2723901PiperonylamineHCID 116941694-(3-chloropropoxy)-1H-indoleHCID 19956046HCID 19956046, compoundHCID 212682944-Cyclopropylmethoxyindole

Product 1

HCID 21268306HCID 21268306, compound

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 887MethanolSolvent2×HCID 8857Ethyl AcetateSolvent2×

Procedure

The title compound was prepared according to Example 99 from 1-chloro-3-(1H-indole-4-oxy) propane and 4-(4-cyclopropylmethoxy-1H-indol-3-yl) piperidine (which was prepared by condensing 4-cyclopropylmethoxyindole with 4-piperidone monohydrate hydrochloride in refluxing methanol with potassium hydroxide, followed by reduction of the unsaturation with palladium on carbon in methanol). The resulting free base was dissolved in ethyl acetate, and precipitated with one equivalent of oxalic acid in ethyl acetate in 57% overall yield as a white foam. FDMS m/e=443 (M+ of free base).

Workup

  1. customoverall yield as a white foam

Sources & evidence

ORD record
ord-90e5816ff4544e5293a66c0a46a85fc4
Source dataset
uspto-grants-2001_01
Patent number
US06172073B2

Reaction notes

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