2-Butenedioic acid, monoethyl ester → (E)-ethyl 4-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidoethylamino)-4-oxobut-2-enoate
Reaction equation
[C:1]([O:8][CH2:9][CH3:10])(=[O:7])/[CH:2]=[CH:3]/[C:4]([O-:6])=O.[C:11]([NH:34][CH2:35][CH2:36][NH:37]C(=O)/C=C/C(OC)=O)(=[O:33])[CH2:12][CH2:13]/[CH:14]=[CH:15]\[CH2:16]/[CH:17]=[CH:18]\[CH2:19]/[CH:20]=[CH:21]\[CH2:22]/[CH:23]=[CH:24]\[CH2:25]/[CH:26]=[CH:27]\[CH2:28]/[CH:29]=[CH:30]\[CH2:31][CH3:32]>>[C:11]([NH:34][CH2:35][CH2:36][NH:37][C:4](=[O:6])/[CH:3]=[CH:2]/[C:1]([O:8][CH2:9][CH3:10])=[O:7])(=[O:33])[CH2:12][CH2:13]/[CH:14]=[CH:15]\[CH2:16]/[CH:17]=[CH:18]\[CH2:19]/[CH:20]=[CH:21]\[CH2:22]/[CH:23]=[CH:24]\[CH2:25]/[CH:26]=[CH:27]\[CH2:28]/[CH:29]=[CH:30]\[CH2:31][CH3:32]Participants
3
Procedure
Mono ethyl fumarate (commercially available) was subjected to the same reaction conditions outlined earlier in the preparation of (E)-methyl 4-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidoethylamino)-4-oxobut-2-enoate. The desired product, namely (E)-ethyl 4-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenamidoethylamino)-4-oxobut-2-enoate, was obtained after purification by silica gel chromatography. MS (EI) calcd for C30H40N2O4: 496.33. found 497 (M+1).
Sources & evidence
- ORD record
- ord-a1225577b0cd44aa8f11b3971709c2c3
- Source dataset
- uspto-grants-2015_03
- Patent number
- US08969354B2
Reaction notes
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