Inventor

WANG PETER X

US47 patents

⚠️ This page may combine multiple inventors who share the name “WANG PETER X”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WANG PETER X

WANG PETER X

Preparation of oxymorphone from oripavine

Processes for the synthesis of tertiary amines

Processes for the production of (+)- “Nal” morphinan compounds

Process for the preparation of quaternary N-alkyl morphinan alkaloid salts

Opiate reduction utilizing catalytic hydrogen transfer reaction

Synthetic route to 14-hydroxyl opiates through 1-halo-thebaine or analogs

Process and compounds for the production of (+)opiates

Substituted berbines and processes for their synthesis

N-demethylation of 6-keto morphinans

Processes and compounds for the preparation of normorphinans

Processes for the preparation of normorphinan salts

Preparation of saturated ketone morphinan compounds

Preparation of amides from an acid and amine for intermediates in the synthesis of morphinans

Preparation of saturated ketone morphinan compounds by catalytic isomerization

Preparation of 3,4-dihydroisoquinolines in the synthesis of morphinans

Sinomenine derivatives and processes for their synthesis

Sinomenine derivatives and processes for their synthesis

Process for the preparation of quaternary N-alkyl morphinan alkaloid salts

Production of alkaloids without the isolation of intermediates

Processes for the synthesis of five and six membered heterocyclic rings

Preparation of substituted morphinan-6-ones and salts and intermediates thereof

MALLINCKRODT LLC

One pot process for producing 6-hydroxyl nal-opiate

Substituted berbines and processes for their synthesis

Convenient preparation of N-substituted morphinan-6-ols from morphinan-6-ones

One-pot preparation of hexahydroisoquinolines from amides

Process for the preparation of quaternary N-alkyl morphinan alkaloid salts

Production of 6-hydroxy morphinans without the isolation of intermediates

Process for the preparation of buprenorphine and derivatives for buprenorphine

Preparation of normorphinans

Process for preparing hydrocodone using a super acid

GROTE CHRISTOPHER W

One-pot preparation of hexahydroisoquinolines from amides

Process for the preparation of 6-alpha-hydroxy-N-alkylated opiates

(+)-6-hydroxy-morphinan or (+)-6-amino-morphinan derivatives

Process for the preparation of 6-alpha-hydroxy-N-alkylated opiates

Preparation of 3,4-dihydroisoquinolines from an acid and an amine

One-pot preparation of hexahydroisoquinolines from dihydroisoquinolines

CANTRELL GARY L

(+)-morphinanium quaternary salts and processes for their production

3-oxy-hydromorphone derivatives

(+)-morphinanium N-oxides and processes for their production

Preparation of tetrahydroisoquinolines from dihydroisoquinolines

Process for the preparation of hexahydroisoquinolines from 1,2,3,4-tetrahydroisoquinolines

MALLINCKRODT INC

N-demethylation of N-methyl morphinans

Process for the preparation of 6-alpha-hydroxy-N-alkylated opiates

Method for the catalytic production of hydrocodone, hydromorphone, and derivatives thereof

Process for the preparation of 3-hydroxymorphinan derivatives

JIANG TAO

Preparation of saturated ketone morphinan compounds having low metal content

LIAO SUBO

Tandem process for preparing N-alkyl morphinans