Some tips on 1334177-86-4

1334177-86-4 1-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3-oxo-7,10,13,16,19,22,25,28-octaoxa-4-azahentriacontan-31-oic acid 51340955, apyrrolines compound, is more and more widely used in various.

1334177-86-4, 1-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3-oxo-7,10,13,16,19,22,25,28-octaoxa-4-azahentriacontan-31-oic acid is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of Super-Hydride (0.37 ml_, 1 M in THF) was added dropwise to a solution of SEM- dilactam 4 (200 mg, 0.15 mmol) in dry THF (5 ml_) at -78C under an argon atmosphere. The addition was completed over 5 minutes in order to maintain the internal temperature of the reaction mixture constant. After 40 minutes, an aliquot was quenched with water for LC/MS analysis, which revealed that the reaction was complete. Water (20 mL) was added to the reaction mixture and the cold bath was removed. The organic layer was extracted with CH2CI2 (3 x 50 mL) and the combined organics were washed with brine (100 mL), dried with MgS04, filtered and the solvent removed by rotary evaporation under reduced pressure. The crude product was dissolved in dry CH2CI2 in a round bottom flask purged with argon. Mal-dPEGs-OH acid (31.4 mg, 0.148 mmol) and EDCI.HCI (28.5 mg, 0.148 mmol) were added and the mixture was left to stir at room temperature until complete. The crude material was purified by reverse phase HPLC to afford product 6 with 82% purity (37 mg, 1 1 % yield). LC/MS 1.38 min (ES+) m/z = 1 101 .05 [Af + 2H]2+- ; LC/MSismin 5.84 min (ES+) m/z = 1 101.05 [Af + 2H]2+ .

1334177-86-4 1-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3-oxo-7,10,13,16,19,22,25,28-octaoxa-4-azahentriacontan-31-oic acid 51340955, apyrrolines compound, is more and more widely used in various.

Reference£º
Patent; MEDIMMUNE LIMITED; HOWARD, Philip Wilson; MASTERSON, Luke; CAILLEAU, Thais; DIMASI, Nazzareno; WHITE, Jason; (71 pag.)WO2019/96788; (2019); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem