HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-Methylmorpholine → L-isoleucine, N-[1-(2-(1,4-dioxa-8-aza-spiro[4.5]dec-8-yl)-2-oxoethyl)-L-Prolyl] benzylamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-Methylmorpholine | HCID 7972 | — |
| Reactant | Isobutyl chloroformate | HCID 62365 | — |
| Reactant | 1,4-Dioxa-8-azaspiro(4.5)decane | HCID 67435 | — |
| Reactant | L-isoleucine, N-[1-(carboxymethyl)-L-prolyl] benzylamide | HCID 131720284 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | L-isoleucine, N-[1-(2-(1,4-dioxa-8-aza-spiro[4.5]dec-8-yl)-2-oxoethyl)-L-Prolyl] benzylamide | HCID 131720285 | 83.5% |
Reaction Steps
A -5° C. solution of L-isoleucine, N-[1-(carboxymethyl)-L-prolyl] benzylamide (254 mg, 0.67 mmol, 1.0 eq), N-methylmorpholine (96 uL, 0.88 mmol, 1.30 eq) in acetonitrile (7 mL) was treated with isobutyl chloroformate (96 uL, 0.74 mmol, 1.1 eq) followed by 1,4-dioxa-8-aza-spiro[4.5] decane (0.193 g, 1.35 mmol, 2.0 eq). Purification by flash chromatography provided 280 mg (83%) of L-isoleucine, N-[1-(2-(1,4-dioxa-8-aza-spiro[4.5]dec-8-yl)-2-oxoethyl)-L-Prolyl] benzylamide as a colorless oil
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05686424 |
| Source dataset | uspto-grants-1997_11 |
| ORD ID | ord-f71cac794704451f808645c94a590978 |
| Source note | uspto-grants-1997_11 |