2-Oxa-5-azabicyclo[2.2.1]heptane hydrochloride → ethyl 3-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1S)-2-oxa-5-azabicyclo[2.2.1]heptan-5-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)bicyclo[3.1.0]hex-2-ene-6-carboxylate

HRID 338656Notes

Reaction equation

HRID 338656 reaction equation
O=S1(=O)[CH2:7][CH:6]2[CH2:8][C@H:3]1[CH2:4][N:5]2[CH2:9][CH2:10][NH:11][C@:12]12[CH2:48][CH2:47][C@@H:46]([C:49]([CH3:51])=[CH2:50])[C@@H:13]1[C@@H:14]1[C@@:27]([CH3:30])([CH2:28][CH2:29]2)[C@@:26]2([CH3:31])[C@@H:17]([C@:18]3([CH3:45])[C@@H:23]([CH2:24][CH2:25]2)[C:22]([CH3:33])([CH3:32])[C:21]([C:34]2[CH2:39][CH:38]4[CH:36]([CH:37]4[C:40]([O:42][CH2:43][CH3:44])=[O:41])[CH:35]=2)=[CH:20][CH2:19]3)[CH2:16][CH2:15]1.Cl.C12CC(NC1)C[O:55]2>>[C@H:3]12[CH2:8][CH:6]([N:5]([CH2:9][CH2:10][NH:11][C@:12]34[CH2:48][CH2:47][C@@H:46]([C:49]([CH3:51])=[CH2:50])[C@@H:13]3[C@@H:14]3[C@@:27]([CH3:30])([CH2:28][CH2:29]4)[C@@:26]4([CH3:31])[C@@H:17]([C@:18]5([CH3:45])[C@@H:23]([CH2:24][CH2:25]4)[C:22]([CH3:32])([CH3:33])[C:21]([C:34]4[CH2:39][CH:38]6[CH:36]([CH:37]6[C:40]([O:42][CH2:43][CH3:44])=[O:41])[CH:35]=4)=[CH:20][CH2:19]5)[CH2:16][CH2:15]3)[CH2:4]1)[CH2:7][O:55]2

Participants

3

Reactant 2

HCID 219143642-Oxa-5-azabicyclo[2.2.1]heptane hydrochlorideHCID 89886506ethyl 3-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1S)-2,2-dioxido-2-thia-5-azabicyclo[2.2.1]heptan-5-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)bicyclo[3.1.0]hex-2-ene-6-carboxylate

Product 1

HCID 89886333ethyl 3-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1S)-2-oxa-5-azabicyclo[2.2.1]heptan-5-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)bicyclo[3.1.0]hex-2-ene-6-carboxylate

Procedure

The title compound was prepared quantitative yield following the method described above for the preparation of ethyl 3-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1S)-2,2-dioxido-2-thia-5-azabicyclo[2.2.1]heptan-5-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)bicyclo[3.1.0]hex-2-ene-6-carboxylate, using racemic (1S)-2-oxa-5-azabicyclo[2.2.1]heptane hydrochloride as the reactant. MS: m/e 685.6 (M+H)+, 2.83 min (method 6). 1H NMR (400 MHz, CHLOROFORM-d) δ 5.80 (br. s., 1H), 5.51-5.37 (m, 1H), 4.73 (d, J=2.0 Hz, 1H), 4.59 (dd, J=2.3, 1.5 Hz, 1H), 4.42 (s, 1H), 4.18-4.10 (m, 2H), 4.07 (d, J=7.8 Hz, 1H), 3.65 (dd, J=7.7, 1.6 Hz, 1H), 3.50 (s, 1H), 2.95 (dd, J=9.8, 1.5 Hz, 1H), 2.95-2.40 (m, 8H), 2.18 (dt, J=6.5, 3.3 Hz, 1H), 2.09-1.96 (m, 3H), 1.92-1.72 (m, 6H), 1.71 (s, 3H), 1.68-1.31 (m, 9H), 1.30-1.10 (m, 10H), 1.08-0.8 (m, 16).

Workup

  1. customm/e 685.6 (M+H)+, 2.83 min (method 6)

Sources & evidence

ORD record
ord-86e0a57389f04eba8ce2b2c56bc76e75
Source dataset
uspto-grants-2014_11
Patent number
US08889854B2

Reaction notes

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