US 5,922,892 AGranted

Process to produce midazolam

AssigneePharmacia & Upjohn Company

InventorJoel Edward Huber

Life of this patent

Estimating the term…

Abstract

The present invention discloses new processes in the preparation of midazolam (VII), ##STR1## a commercially important pharmaceutical, as well a new intermediates in those processes from a known benzophenone (I) starting material.

Claims6

Dependent claims

A process for producing TPAP in an activated form which comprises contacting unactivated TPAP with an alcohol.

Dependencies are inferred from the claim text.

Facts

Application: 09/062,929Filed 20 Apr 1998 · division
Priority: 28 May 1997
Granted: 13 Jul 1999
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

C07D 487/04
In which the condensed system contains two hetero rings: ortho-condensed systems
C07C 257/06
Without replacement of the other oxygen atom of the carboxyl group, e.g. imino-ethers: having carbon atoms of imino-carboxyl groups bound to…
C07D 239/76
With only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to ring carbon atoms of the hetero ring: n-oxides
C07D 243/16
1,4-Benzodiazepines; Hydrogenated 1,4-benzodiazepines: substituted in position 5 by aryl radicals

Family

Serial864,043Parent of this division · filed 28 May 1997
US 5,831,089 AParent of this division
US 5,922,892 AThis patent

From the US filing history. Foreign family members aren’t listed.

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