Piperazine → HCID 53259037, compound

HRID 879977Notes

Reaction equation

HRID 879977 reaction equation
[C:1](=O)([O:30]C1C=CC([N+]([O-])=O)=CC=1)[O:2][C@@H:3]1[CH2:19][C@@H:18]2[C@@:6]([CH3:29])([C@@H:7]3[C@@H:15]([CH2:16][CH2:17]2)[C@:14]2([OH:20])[C@@:10]([CH3:28])([C@@H:11]([C:21]4[CH:22]=[CH:23][C:24](=[O:27])[O:25][CH:26]=4)[CH2:12][CH2:13]2)[CH2:9][CH2:8]3)[CH2:5][CH2:4]1.[NH:41]1[CH2:46][CH2:45][NH:44][CH2:43][CH2:42]1>C(Cl)Cl>[N:41]1([C:1]([O:2][C@@H:3]2[CH2:19][C@@H:18]3[C@@:6]([CH3:29])([C@@H:7]4[C@@H:15]([CH2:16][CH2:17]3)[C@:14]3([OH:20])[C@@:10]([CH3:28])([C@@H:11]([C:21]5[CH:22]=[CH:23][C:24](=[O:27])[O:25][CH:26]=5)[CH2:12][CH2:13]3)[CH2:9][CH2:8]4)[CH2:5][CH2:4]2)=[O:30])[CH2:46][CH2:45][NH:44][CH2:43][CH2:42]1

Participants

4

Reactant 2

HCID 4837PiperazineHCID 58392955HCID 58392955, compound

Product 1

HCID 53259037HCID 53259037, compoundYield 69.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (3S,5R,8R,9S,10S,13R,14S,17R)-14-hydroxy-10,13-dimethyl-17-(2-oxo-2H-pyran-5-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-3-yl 4-nitrophenyl carbonate (29 mg, 0.054 mmol) in CH2Cl2 was added piperazine (46.4 mg, 0.54 mmol). The resultant mixture was stirred at rt for 16 h and then purified via preparative TLC to afford (3S,5R,8R,9S,10S,13R,14S,17R)-14-hydroxy-10,13-dimethyl-17-(2-oxo-2H-pyran-5-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-3-yl piperazine-1-carboxylate (18.6 mg, 69.2%) as a white solid. LRMS (M+H+) m/z 499.5. 1H NMR (CD3OD, 400 MHz) δ 7.90 (dd, J=9.6, 2.4 Hz, 1H), 7.33 (m, 1H), 6.18 (d, J=9.6 Hz, 1H), 4.89 (m, 1H), 3.41 (m, 4H), 2.77-2.80 (m, 4H), 2.44-2.48 (m, 1H), 1.08-2.15 (m, 21H), 0.88 (s, 3H), 0.62 (s, 3H).

Workup

  1. custompurified via preparative TLC

Sources & evidence

ORD record
ord-15cccb0c4c1d44eea21b044290a3cc52
Source dataset
uspto-grants-2015_03
Patent number
US08993550B2

Reaction notes

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