Antifungal Compound Process
The present invention relates to a process for preparing compound 1 that is useful as an antifungal agent. In particular, the invention seeks to provide new methodology for preparing compound 1 and substituted derivatives thereof.
1 - 12 . (canceled)
13 . A process to prepare compound 1 or 1a, or a mixture thereof:
comprising reacting morpholine amide 2b:
with
to provide ketone 3,
wherein M is Mg or MgX, Li, AlX 2 ; and X is halogen, alkyl, or aryl; and
R 1 is halo or
14 . (canceled)
15 . The process of claim 14 , wherein M is Mg or MgX, and X is halogen.
16 . The process of claim 13 , further comprising amidation of ester 2:
with morpholine to provide morpholine amide 2b:
wherein each R 1 is independently halo or
17 . (canceled)
18 . The process of claim 13 , further comprising:
(i) arylating ketone 3,
to provide aryl-pyridine 1-4,
(ii) forming the epoxide of aryl-pyridine 1-4,
to provide epoxide 5,
(iii) ring-opening epoxide 5,
to provide amino-alcohol ±1-6,
(iv) enriching the enantiomeric purity of amino-alcohol ±1-6,
to provide enantio-enriched amino-alcohol 1-6* or 1-7*,
or a mixture thereof; and
(v) forming the tetrazole of enantio-enriched amino-alcohol 1-6* or 1-7*,
or a mixture thereof, to provide compound 1 or 1a,
or a mixture thereof;
wherein each R 1 is independently halo or
19 - 22 . (canceled)
23 . The process of claim 13 , further comprising:
(i) forming the epoxide of ketone 3,
to provide epoxide 4,
(iii) ring-opening epoxide 4,
to provide amino-alcohol ±4b,
(iii) enriching the enantiomeric purity of amino-alcohol ±4b,
to provide enantio-enriched amino-alcohol 4b or 4c:
or a mixture thereof;
(iv) arylating enantio-enriched amino-alcohol 4b or 4c,
or a mixture thereof, to provide enantio-enriched aryl-pyridine 1-6* or 1-7*,
or a mixture thereof; and
(v) forming the tetrazole of enantio-enriched aryl-pyridine 1-6* or 1-7*,
or a mixture thereof, to provide compound 1 or 1a,
or a mixture thereof;
wherein each R 1 is independently halo or
24 - 29 . (canceled)
30 . The process of claim 13 , further comprising:
(i) forming the epoxide of ketone 3,
to provide epoxide 4,
(ii) ring-opening epoxide 4,
to provide amino-alcohol ±4b,
(iii) enriching the enantiomeric purity of amino-alcohol ±4b,
to provide enantio-enriched amino-alcohol 4b or 4c:
or a mixture thereof;
(iv) forming the tetrazole of enantio-enriched amino-alcohol 4b or 4c:
or a mixture thereof, to provide tetrazole 21 or 21a,
or a mixture thereof; and
(v) arylating tetrazole 21 or 21a,
or a mixture thereof, to provide compound 1 or 1a,
or a mixture thereof;
wherein each R 1 is independently halo of
31 - 89 . (canceled)
90 . A process to prepare compound 1 or 1a, or a mixture thereof:
comprising
(i) displacing the morpholino portion of morpholine amide 2b,
to provide ketone 3,
(ii) forming the epoxide of ketone 3,
to provide epoxide 4,
(iii) ring-opening epoxide 4,
to provide amino-alcohol ±4b,
(iv) enriching the enantiomeric purity of amino-alcohol ±4b,
to provide enantio-enriched amino-alcohol 4b or 4c:
or a mixture thereof;
(v) forming the tetrazole of enantio-enriched amino-alcohol 4b or 4c:
or a mixture thereof, to provide tetrazole 21 or 21a,
or a mixture thereof; and
(vi) arylating tetrazole 21 or 21a,
or a mixture thereof, to provide compound 1 or 1a,
or a mixture thereof;
wherein each R 1 is independently halo or
91 . A process to prepare compound 1 or 1a, or a mixture thereof:
comprising
(i) displacing the morpholino portion of morpholine amide 2b,
to provide ketone 3,
(ii) forming the epoxide of ketone 3,
to provide epoxide 4,
(iii) ring-opening epoxide 4,
to provide amino-alcohol ±4b,
(iv) enriching the enantiomeric purity of amino-alcohol ±4b,
to provide enantio-enriched amino-alcohol 4b or 4c:
or a mixture thereof;
(v) arylating enantio-enriched amino-alcohol 4b or 4c,
or a mixture thereof, to provide enantio-enriched aryl-pyridine 1-6* or 1-7*,
or a mixture thereof; and
(vi) forming the tetrazole of enantio-enriched aryl-pyridine 1-6* or 1-7*,
or a mixture
thereof, to provide compound 1 or 1a,
or a mixture thereof;
wherein each R 1 is independently halo or