(15R,19R)-tert-butyl 15-amino-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oate → (15R,19R)-15-amino-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oic acid

HRID 2407955Notes

Reaction equation

HRID 2407955 reaction equation
[NH2:1][C@@H:2]([CH2:24][S:25][CH2:26][C@H:27]([O:43][C:44](=[O:56])[NH:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH3:55])[CH2:28][O:29][C:30](=[O:42])[NH:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH3:41])[C:3](=[O:23])[NH:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][O:13][CH2:14][CH2:15][C:16]([O:18]C(C)(C)C)=[O:17]>C(O)(C(F)(F)F)=O.C(Cl)Cl>[NH2:1][C@@H:2]([CH2:24][S:25][CH2:26][C@H:27]([O:43][C:44](=[O:56])[NH:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH3:55])[CH2:28][O:29][C:30](=[O:42])[NH:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH3:41])[C:3](=[O:23])[NH:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][O:13][CH2:14][CH2:15][C:16]([OH:18])=[O:17]

Participants

4

Reactant 1

HCID 86678323(15R,19R)-tert-butyl 15-amino-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oate

Product 1

HCID 53477117(15R,19R)-15-amino-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oic acid

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 6422Trifluoroacetic acidSolvent

Procedure

A solution of (15R,19R)-tert-butyl 15-amino-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oate in 30% TFA in DCM (0.3 M) was stirred at room temperature until complete deprotection of the tert-butyl group (4 hours). The reaction was diluted with DCM and concentrated with a stream of nitrogen then purified by flash chromatography on a COMBIFLASH® system (ISCO) using a gradient of 0-10% MeOH/DCM with 0.5% AcOH to afford (15R,19R)-15-amino-19-(decylcarbamoyloxy)-14,22-dioxo-4,7,10,21-tetraoxa-17-thia-13,23-diazatritriacontan-1-oic acid as a clear oil. 1H NMR (DMSO-d6): δ 12.21 (br s, 1H), 8.22 (t, 1H), 7.23 (m, 2H), 4.92 (m, 1H), 4.18 (dd, 2H), 3.94 (m, 1H), 3.57 (t, 2H), 3.30-3.54 (m, 12H), 3.37 (t, 2H), 2.90-3.08 (m, 4H), 2.60-2.82 (m, 4H), 2.48 (t, 2H), 1.32 (m, 4H), 1.22-1.28 (m, 28H), 0.79 (t, 6H). LRMS [M+H]=765.5.

Workup

  1. concentrationconcentrated with a stream of nitrogen
  2. customthen purified by flash chromatography on a COMBIFLASH® system (ISCO)

Sources & evidence

ORD record
ord-3b308ced062242afbe34851842eb7886
Source dataset
uspto-grants-2014_08
Patent number
US08808703B2

Reaction notes

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