IP Library Patent Application 16386532
Patent Application
App. No. 16/386,532

PROCESS FOR IMPROVED OPIOID SYNTHESIS

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Quick Facts
Patent No.
US None
App. No.
16/386,532
Abstract

Compounds and compositions for use as starting materials or intermediate materials in the preparation of opioids including, e.g., oxymorphone base and/or an oxymorphone salt; processes for preparing these compounds and compositions; uses of these compounds and compositions in the preparation of APIs and pharmaceutical dosage forms; and uses of said APIs and pharmaceutical dosage forms in the treatment of medical conditions.

Claims (29)

1 - 134 . (canceled)

135 . A compound, which is an isolated compound having the formula V or a solvate thereof

wherein R 1 is —H, aralkyl, —(C 1 -C 6 )alkenyl, —SiR 3 3 , —(C 3 -C 7 )cycloalkyl, —(C 1 -C 7 )alkyl-(C 3 -C 7 )cycloalkyl, —(C 3 -C 7 )cycloalkenyl, —(C 1 -C 7 )alkyl-(C 3 -C 7 )cycloalkenyl, —CR 4 2 —O—(C 1 -C 6 )alkyl, —C(halo) 3 , —CH 2 (halo), —CH(halo) 2 , —SO 2 R 5 , or an O-protecting group,

R 2 is —H, —CH 3 , —(C 2 -C 7 )alkyl, —(C 2 -C 4 )alkenyl, benzyl, —(C 1 -C 7 )alkyl-(C 3 -C 7 )cycloalkyl, —CN, or an N-protecting group, and

X n− is S 4 2− , and n is 2.

136 - 138 . (canceled)

139 . The compound having the formula V of claim 135 , wherein R 1 is —H.

140 . The compound having the formula V of claim 135 , wherein R 2 is —CH 3 .

141 . The compound having the formula V of claim 135 , wherein R 2 is —H.

142 . The compound having the formula V of claim 135 , which is

or a hydrate thereof.

143 . The compound having the formula V of claim 135 , which is

or a hydrate thereof.

144 . The compound having the formula V of claim 135 , which is a hydrate of isolated 14-hydroxymorphinone sulfate having formula

145 . The compound having the formula V of claim 135 , which is the hydrate of the compound of formula V.

146 . The compound having the formula V of claim 145 , wherein the hydrate is a hydrate containing from 0.1 to 6.9 water molecules per molecule of the compound of formula V.

147 . The compound of claim 145 , which is a monohydrate, dihydrate, trihydrate, tetrahydrate, pentahydrate, or hexahydrate.

148 . The compound of claim 147 , which is a monohydrate or a pentahydrate.

149 - 152 . (canceled)

153 . A composition comprising the compound of formula V according to claim 135 .

154 . The composition of claim 153 , which additionally comprises a compound of formula III

wherein R 1 is —H, aralkyl, —(C 2 -C 6 )alkenyl, —SiR 3 3 , —(C 3 -C 7 )cycloalkyl, —(C 7 -C 7 )alkyl-(C 3 -C 7 )cycloalkyl, —(C 3 -C 7 )cycloalkenyl, —(C 1 -C 7 )alkyl-(C 3 -C 7 )cycloalkenyl, —CR 4 2 —O—(C 1 -C 6 )alkyl, —C(halo) 3 , —CH 2 (halo), —CH(halo) 2 , —SO 2 R 5 , or an O-protecting group, and R 2 is —H, —CH 3 —(C 2 -C 7 )alkyl, —(C 2 -C 4 )alkenyl, benzyl, —(C 1 -C 7 )alkyl-(C 3 -C 7 )cycloalkyl, —CN, or an N-protecting group,

or a salt or solvate thereof.

155 . The composition of claim 154 , wherein the amount of the compound of formula III in the composition is less than about 2500 ppm, less than about 2250 ppm, less than about 2000 ppm, less than about 1750 ppm, less than about 1500 ppm, or less than about 1250 ppm of the compound of formula V (HPLC peak area ratio).

156 . The composition of claim 154 , wherein the amount of the compound of formula III in the composition is less than about 1000 ppm, less than about 750 ppm, less than about 500 ppm, less than about 400 ppm, less than about 300, less than about 250 ppm, less than about 200 ppm, or less than about 150 ppm of the compound of formula V (HPLC peak area ratio).

157 . The composition of claim 154 , wherein the amount of the compound of formula III in the composition is less than about 100 ppm, less than about 90 ppm, less than about 80 ppm, less than about 70 ppm, less than about 60 ppm, less than about 50 ppm, less than about 40 ppm, less than about 30 ppm, or less than about 20 ppm of the compound of formula V (HPLC peak area ratio).

158 . The composition of claim 154 , wherein the amount of the compound of formula III in the composition is less than about 10 ppm, less than about 8 ppm, less than about 6 ppm, less than about 4 ppm, or less than about 2 ppm of the compound of formula V (HPLC peak area ratio).

159 . The composition of claim 154 , wherein the amount of the compound of formula III in the composition is less than about 1 ppm, less than about 0.8 ppm, less than about 0.6 ppm, less than about 0.4 ppm, less than about 0.3 ppm, less than about 0.2 ppm, or less than about 0.1 ppm of the compound of formula V (HPLC peak area ratio).

160 - 242 . (canceled)

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2026
From: RHODES TECHNOLOGIES
To: KNOA PHARMA LLC
Reel/Frame 075838/0956 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2025
From: GEBBIE, STUART JAMES; GIGUERE, JOSHUA R.; MCCARTHY, KEITH; RIDER, LONN S.
To: RHODES TECHNOLOGIES
Reel/Frame 071143/0044 →