NAME OF THE INTERMEDIATE

CHEMICAL STRUCTURE

CAS No. & FORMULA

KEY USE

3-(2-CHLOROPHENYL)-5-
METHYL-4-ISOXAZOLE-
CARBONYL CHLORIDE
 [CMIC CHLORIDE]

3-(2,6-DICHLOROPHENYL)-5-
METHYL-4-ISOXAZOLE- 
CARBONYL CHLORIDE
[DCMIC CHLORIDE]

3-(2-CHLORO-6-FLUOROPHENYL)-5- METHYL-4-ISOXAZOLE- CARBONYL CHLORIDE
[FCMIC CHLORIDE]  

SILYLATED ERYTHROMYCIN OXIME KETAL

DESMETHYL AZITHROMYCIN

ECPPA

4-METHYL-[2'-(2-TRITYL-2H-
TETRAZOL-5-YL)]BIPHENYL

4-BROMOMETHYL-[2'-(2-
TRITYL-2H-TETRAZOL-5-YL)]
BIPHENYL

2-BUTYL-4-CHLORO-1-[2'-(2-
TRITYL-2H-TETRAZOLE-5-YL
)BIPHENYL-4-YL- METHYL-1H-IMIDAZOLE-5
-YL-METHANOL

[133909-99-6]
C₄₁H₃₇ClN₆O

2-BUTYL-5-CHLORO-
1H-IMIDAZOLE-4-
CARBALDEHYDE

tert-BUTYL(4R, 6R)-2-[6-(2-AMINOETHYL)-2,
2-DIMETHYL-1,3-DIOXAN-4
-YL]ACETATE

4-(4-FLUOROPHENYL)-2-ISOBUTYRYL-3
-PHENYL-4-OXO-N-PHENYL-
BUTANAMIDE 
(DIKETO INTERMEDIATE)

[125971-96-2]
C₂₆H₂₄FNO₃

tert-BUTYL (4R, 6R)-2-[[[6-[2-(4-FLUOROPHENYL)
-5-ISOPROPYL-3-PHENYL-4-
(PHENYLCARBAMOYL) PYRROL-1YL]ETHYL]-2,2-
DI-METHYL-1,3-DIOXAN-4-YL] ACETATE 
(DIPROTECTED ATORVASTATIN)

Cis-2-(2,4-DICHLORIPHENYL)-2-
(1H-1,2,4-TRIAZOLE-1-YL-METHYL)
-1,3-DIOXOLANE-4-METHANOL METHANE SULFONATE

[67914-86-7]
C₁₄H₁₃Cl₂N₃O₅S

2,4-DIHYDRO-4-[4-[4-(4-
HYDROXYPHENYL)-1-PIPERAZINYL]
-PHENYL]-2-(1-METHYLPROPYL)
-3H-1,2,4-TRIAZOLE-3-ONE  

(E)-1-CHLORO-6,6-DIMETHYL
-2-HEPTEN-4-YNE

N-METHYL-2-NAPHTHALENE-
METHANAMINE

2-CHLOROMETHYL-3-METHYL-4-
(2,2,2-TRIFLUOROETHOXY)-PYRIDINE HYDROCHLORIDE  

[127337-60-4]
C₉H₁₀Cl₂F₃NO

2-[((3-METHYL-4-[2,2,2-
TRIFLUOROETHOXY]-2 PYRIDINYL)
-METHYL)THIO]-1H-BENZIMIDAZOLE

2-(CHLOROMETHYL)3,5-DIMETHYL
-4-METHOXY-PYRIDINE HYDROCHLORIDE

5-METHOXY-2-[((4-METHOXY-3,5
-DIMETHYL-2-PYRIDINYL)-METHYL)- THIO]-1H-BENZIMIDAZOLE

5-DIFLUOROMETHOXY-2-
[(3,4-DIMETHOXY-2-PYRIDINYL
)METHYLTHIO]-1H-BENZIMIDAZOLE

trans-(-)-4-(4'-FLUORO PHENYL)-3-[[3,4-(METHYLENEDIOXY)- PHENOXY]-METHYL]-N-METHYLPIPERIDINE

6-FLUORO-3(4-PIPERIDINYL)1,
2-BENZISOXAZOLE HYDROCHLORIDE

3-(2-CHLOROETHYL)-2-
METHYL-6,7,8,9-TETRAHYDRO-4H-PYRIDO[1,2-a] PYRIMIDIN-4-ONE  HYDROCHLORIDE

1-METHYL-3-PHENYL PIPERAZINE

5-CYANOPHTHALIDE

4-(CYCLOPROPYL CARBONYL)-a,a-DIMETHYL
PHENYL ACETIC ACID

METHYL [4-(4-CHLORO-1-OXOBUTYL)]
-a,a-DIMETHYL PHENYLACETATE
(OR)
2-[4-(4-CHLORO-1-OXOBUTYL)-
PHENYL]-2-METHYLPROPIONIC ACID METHYL ESTER

a,a-DIMETHYL-4-[4-[4-
(HYDROXYDIPHENYL METHYL)-1-PIPERIDINYL]-1-
OXOBUTYL]PHENYL   ACETIC ACID
  METHYL ESTER HYDROCHLORIDE

[169280-33-5]
C₃₃H₃₉NO₄.HCl

1-(3-CHLOROPROPYL)-1,3-DIHYDRO
-2H-BENZIMIDAZOL-2-ONE  

5-CHLORO-1,3-DIHYDRO-1-
(4-PIPERIDINYL)-2H-BENZIMIDAZOL
-2-ONE  

[53786-28-0]
C₁₂H₁₄ClN₃O

3-AMINO-2-CHLORO-4-METHYL PYRIDINE

[133627-45-9]
C₆H₇N₂Cl

2-CHLORO-N-(2-CHLORO-4-
METHYL-3-PYRIDYL)-3-PYRIDINE CARBOXAMIDE

[133627-46-0]
C₁₂H₉N₃OCl₂

  NEVIRAPINE

(2R-Cis)-4-AMINO-1-[2(2-
CARBOXYMENTHOLYL)-1,3-
OXATHIOLAN-5-YL]-2-(1H)-
PYRIMIDINONE

[73590-85-9]
C₁₈H₂₇N₃O₄S

LAMIVUDINE

Cis-(1S)-AMINO-(2R)-INDANOL

N-[N,O-ISOPROPYLIDENE-
(2R)-HYDROXY INDAN-(1S)-YL]-(2R)-BENZYL
-(4S,5)-EPOXY PENTANAMIDE (EPOXIDE-DERIVATIVE)

[158512-24-4]
C₂₄H₂₇NO₃

INDINAVIR SULFATE

4-(tert-BUTOXY-CARBONYL)
-N-tert-BUTYL-PIPERAZINE-
(2S)-CARBOXAMIDE

[150323-35-6]
C₁₄H₁₇N₃O₃

INDINAVIR SULFATE

(S)-N-tert-BUTYL DECAHYDRO-3-ISOQUINOLIN CARBOXAMIDE

[136465-81-1]
C₁₄H₂₆N₂O

NELFINAVIR      SAQUINAVIR

DIMETHYL 2,3-O-ISOPROPYLIDENE-
D-TARTRATE

[37031-30-4]
C₉H₁₄O₆

NELFINAVIR

(4R-trans) 1,3-DIOXOLANE-4,5-
DIMETHANOL-2,2-DIMETHYL BUTANOIC ACID

[73346-74-4]
C₇H₁₄O₄

NELFINAVIR

7-AMINO-3-VINYL-3-
CEPHEM-4-CARBOXYLIC ACID

[79349-82-9]
C₉H₁₀N₂O₃S

CEFIXIME

(2S-trans)-3-AMINO-2-
METHYL-4-OXO-1-
AZETIDINESULFONIC ACID

[80082-65-1]
C₄H₈N₂O₄S

  AZTREONAM