IP Library Granted Patent US 7,824,659
Granted Patent B2
US 7,824,659 · App. 11/492,729 · Granted Nov 2, 2010

Methods of making radiolabeled tracers and precursors thereof

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Quick Facts
Patent No.
US 7,824,659
App. No.
11/492,729
Granted
Nov 2, 2010
Kind
B2
Abstract

The present disclosure relates to a solid-phase process for the production of radiolabeled tracers, in particular for the production of 18 F-labeled compounds which may be used as Positron Emission Tomography (PET) radiolabeled tracers. The disclosure also relates to radiopharmaceutical kits comprising precursors to the radiolabeled tracers, which can be converted to the radiolabeled tracers using the processes described herein.

Claims (31)

1. A compound of formula (I)

wherein

Sup is a solid support, resin, polymer, or macromolecular matrix;

X and Y are independently at each occurrence S, O, or —(CH 2 )—;

n is 0 to 6; and

R is C 1-6 alkyl.

2. The following is an examiner's statement of reasons for allowance: the compounds of the instant claims are free of the prior art. The closest prior art U.S. Pat. No. 7,344,702 provides for the compounds,

but does not teach of the compounds above bound to the —OSO 2 -Sup group of the instant claims.

3. The compound of claim 1 of formula (II)

4. A radiopharmaceutical kit for the preparation of an 18 F-labeled tracer for use in Positron Emission Tomography, comprising

(i) a vessel containing a compound of formula (I)

 or a pharmaceutically acceptable salt thereof, wherein

Sup is a solid support, resin, polymer, or macromolecular matrix;

X and Y are independently at each occurrence S, O, or —(CH 2 )—;

n is 0 to 6; and

R is C 1-6 alkyl;

(ii) means for eluting the vessel with a source of 18 F − ;

(iii) an ion-exchange cartridge for removal of excess 18 F − ; and

(iv) an optional cartridge for solid-phase purification of a compound of formula (Ia)

wherein

X and Y are independently each occurrence S, O, or —(CH 2 )—;

n is 0 to 6; and

R is C 1-6 alkyl.

5. A cartridge for a radiopharmaceutical kit used in the preparation of an 18 F-labeled tracer for use in Positron Emission Tomography comprising

(i) a vessel containing a compound of formula (I)

 or a pharmaceutically acceptable salt thereof, wherein

Sup is a solid support, resin, polymer, or macromolecular matrix;

X and Y are independently at each occurrence S, O, or —(CH 2 )—;

n is 0 to 6; and

R is C 1-6 alkyl; and

(ii) means for eluting the vessel with a source of 18 F − .

Assignments (13)
RELEASE OF SECURITY INTEREST Recorded Jun 27, 2019
From: JPMORGAN CHASE BANK, N.A.
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 049623/0123 →
NOTICE OF SUCCESSION OF AGENCY Recorded May 25, 2017
From: CREDIT SUISSE AG
To: JPMORGAN CHASE BANK, N.A., AS SUCCESSOR AGENT
Reel/Frame 042586/0699 →
RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS Recorded May 25, 2017
From: JPMORGAN CHASE BANK, N.A.
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 042586/0710 →
RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS Recorded Mar 30, 2017
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: LANTHEUS HOLDINGS, INC.; LANTHEUS MEDICAL IMAGING, INC.; LANTHEUS MI REAL ESTATE, LLC
Reel/Frame 042115/0715 →
SECURITY AGREEMENT Recorded Jun 30, 2015
From: LANTHEUS MEDICAL IMAGING, INC.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 036013/0516 →
ASSIGNMENT OF SECURITY INTEREST IN PATENTS Recorded Jul 3, 2013
From: BMO HARRIS BANK N.A.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ASSIGNEE
Reel/Frame 030740/0335 →
RELEASE OF PATENT SECURITY AGREEMENT Recorded May 13, 2010
From: ABLECO FINANCE LLC
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 024380/0363 →
SECURITY AGREEMENT Recorded May 13, 2010
From: LANTHEUS MEDICAL IMAGING, INC.
To: HARRIS N.A., AS COLLATERAL AGENT
Reel/Frame 024390/0733 →
MERGER Recorded Mar 7, 2008
From: ACP LANTERN ACQUISITION, INC.
To: BRISTOL-MYERS SQUIBB MEDICAL IMAGING, INC.
Reel/Frame 020609/0733 →
CHANGE OF NAME Recorded Mar 7, 2008
From: BRISTOL-MYERS SQUIBB MEDICAL IMAGING, INC.
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 020609/0746 →
GRANT OF SECURITY INTEREST Recorded Mar 6, 2008
From: ACP LANTERN ACQUISITION, INC.
To: ABLECO FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 020609/0506 →
ASSIGNMENT OF PATENTS Recorded Jan 9, 2008
From: BRISTOL-MYERS SQUIBB PHARMA COMPANY
To: ACP LANTERN ACQUISITION, INC.
Reel/Frame 020339/0341 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2006
From: CASEBIER, DAVID S.; CESATI, III, RICHARD R.; CHEESMAN, EDWARD H.
To: BRISTOL-MYERS SQUIBB PHARMA COMPANY
Reel/Frame 018172/0515 →