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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1476537Generated: October 25, 2026

Diisopropylethylamine → 3-[1-({3-[(4aR,10bR)-9-ethoxy-8-methoxy-3,4,4a,10b-tetrahydro-1H-thiopyrano[4,3-c]isoquinolin-6-yl]phenyl}carbonyl)piperidin-4-yl]-1-[(2-ethyl-2H-tetrazol-5-yl)methyl]-6-phenylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione

https://huagongshe.com/reaction/1476537

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Reactant1-[(2-ethyl-2H-tetrazol-5-yl)methyl]-6-phenyl-3-(piperidin-4-yl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dioneHCID 67258713—
Reactant3-[(4aR,10bR)-9-ethoxy-8-methoxy-3,4,4a,10b-tetrahydro-1H-thiopyrano[4,3-c]isoquinolin-6-yl]benzoic acidHCID 67260666—
SolventDichloromethaneHCID 6344—
Product3-[1-({3-[(4aR,10bR)-9-ethoxy-8-methoxy-3,4,4a,10b-tetrahydro-1H-thiopyrano[4,3-c]isoquinolin-6-yl]phenyl}carbonyl)piperidin-4-yl]-1-[(2-ethyl-2H-tetrazol-5-yl)methyl]-6-phenylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dioneHCID 53247118—

Reaction Steps

In analogy to the procedure described for example 14 3-[(4aR,10bR)-9-ethoxy-8-methoxy-3,4,4a,10b-tetrahydro-1H-thiopyrano[4,3-c]isoquinolin-6-yl]benzoic acid (120 mg; compound C8) is reacted with HBTU (120 mg), 1-[(2-ethyl-2H-tetrazol-5-yl)methyl]-6-phenyl-3-(piperidin-4-yl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (132 mg; compound B39) and DIPEA (0.16 ml) in DCM (10 ml). After purification by flash column chromatography (silica gel, eluent: EtOAc) the title compound is obtained as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09018175B2
Source datasetuspto-grants-2015_04
ORD IDord-30526795a0444657aeead888e7fa2f0f
Source noteuspto-grants-2015_04