Triphenylphosphine → {3-[9-[(1R,2S,3R,4S)-2,3-Dihydroxy-4-(2-hydroxy-acetylamino)-cyclopentyl]-6-((S)-1-hydroxymethyl-2-phenyl-ethylamino)-9H-purin-2-yl]-prop-2-ynyl}-carbamic acid tert-butyl ester

HRID 215888Notes

Reaction equation

HRID 215888 reaction equation
[CH2:1]([C@H:8]([NH:11][C:12]1[N:20]=[C:19](Cl)[N:18]=[C:17]2[C:13]=1[N:14]=[CH:15][N:16]2[C@@H:22]1[CH2:26][C@H:25]([NH:27][C:28](=[O:31])[CH2:29][OH:30])[C@@H:24]([OH:32])[C@H:23]1[OH:33])[CH2:9][OH:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:34]([O:38][C:39](=[O:44])[NH:40][CH2:41][C:42]#[CH:43])([CH3:37])([CH3:36])[CH3:35].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C(NCC)C.CN(C=O)C.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:34]([O:38][C:39](=[O:44])[NH:40][CH2:41][C:42]#[C:43][C:19]1[N:18]=[C:17]2[C:13]([N:14]=[CH:15][N:16]2[C@@H:22]2[CH2:26][C@H:25]([NH:27][C:28](=[O:31])[CH2:29][OH:30])[C@@H:24]([OH:32])[C@H:23]2[OH:33])=[C:12]([NH:11][C@H:8]([CH2:9][OH:10])[CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[N:20]=1)([CH3:37])([CH3:36])[CH3:35]

Participants

8

Reactant 3

HCID 11776TriphenylphosphineHCID 11073648tert-butyl N-(prop-2-yn-1-yl)carbamateHCID 86632435N-{(1S,2R,3S,4R)-4-[6-((S)-1-benzyl-2-hydroxy-ethylamino)-2-chloro-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-2-hydroxy-acetamide

Product 1

HCID 67022958{3-[9-[(1R,2S,3R,4S)-2,3-Dihydroxy-4-(2-hydroxy-acetylamino)-cyclopentyl]-6-((S)-1-hydroxymethyl-2-phenyl-ethylamino)-9H-purin-2-yl]-prop-2-ynyl}-carbamic acid tert-butyl ester

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolventHCID 8021DiethylamineSolvent

Conditions

Temperature
120 °C

Procedure

N-{(1S,2R,3S,4R)-4-[6-((S)-1-Benzyl-2-hydroxy-ethylamino)-2-chloro-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-2-hydroxy-acetamide (Intermediate GC) (1 eq.), prop-2-ynyl-carbamic acid tert-butyl ester (10 eq.), CuI (0.25 eq.), bis(triphenylphosphine)-palladium(II) chloride (0.25 eq.) and triphenylphosphine (0.5 eq.) are dissolved in diethylamine and DMF. The reaction mixture is heated in a microwave for 1 hour at 120° C. The title compound is obtained by column chromatography.

Sources & evidence

ORD record
ord-6f7d5a24724142c0aeb415ce05370028
Source dataset
uspto-grants-2012_06
Patent number
US08193164B2

Reaction notes

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