(1′S,2R,3R)-(−)-2-Hydr­oxy-3-morpholino-3-phenyl-N-(1′-phenyl­ethyl)propion­amide

Mendoza, A.; Aparicio, D.M.; Terán, J.L.; Gnecco, D.; Juárez, J.R.

doi:10.1107/S1600536809008198

organic compounds

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ISSN: 2056-9890

Volume 65| Part 4| April 2009| Page o743

doi:10.1107/S1600536809008198

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(1′S,2R,3R)-(−)-2-Hydroxy-3-morpholino-3-phenyl-N-(1′-phenylethyl)propionamide

Angel Mendoza,^a ^* David M. Aparicio,^a Joel L. Terán,^a Dino Gnecco ^a and Jorge R. Juárez ^a

^aCentro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, Mexico
^*Correspondence e-mail: angel.mendoza.m@gmail.com

(Received 3 March 2009; accepted 5 March 2009; online 14 March 2009)

In the title compound, C₂₁H₂₆N₂O₃, the morpholine ring has a chair conformation and the dihedral angle between the two phenyl rings is 59.0 (3)°. The crystal packing is stabilized by intermolecular O—H⋯O hydrogen bonds, generating a ribbon structure along the a axis. An intramolecular N—H⋯O contact is also present.

Related literature

For general background, see: Barbaro et al. (1992 ); Szymanski et al. (2006 ); Sheppard et al. (2004 ); Chen et al. (1996 ); Concellón et al. (2003a ,b ); Martín et al. (2004 ). For related structures, see: Romero et al. (2005a ,b ). For ring conformation analysis, see: Cremer & Pople (1975 ).

Experimental

Crystal data

C₂₁H₂₆N₂O₃
M_r = 354.44
Orthorhombic, P 2₁ 2₁ 2₁
a = 6.0010 (17) Å
b = 15.659 (3) Å
c = 20.746 (4) Å
V = 1949.5 (8) Å³
Z = 4
Mo Kα radiation
μ = 0.08 mm⁻¹
T = 293 K
0.72 × 0.28 × 0.16 mm

Data collection

Bruker P4 diffractometer
Absorption correction: none
3964 measured reflections
2959 independent reflections
1116 reflections with I > 2σ(I)
R_int = 0.055
3 standard reflections every 97 reflections intensity decay: 3%

Refinement

R[F² > 2σ(F²)] = 0.054
wR(F²) = 0.163
S = 0.89
2959 reflections
251 parameters
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.24 e Å⁻³
Δρ_min = −0.19 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯O1	1.00 (7)	1.92 (7)	2.569 (5)	120 (5)
O1—H1O⋯O2ⁱ	0.98 (8)	1.80 (8)	2.753 (4)	163 (7)
Symmetry code: (i) x-1, y, z.

Data collection: XSCANS (Siemens, 1994 ); cell refinement: XSCANS; data reduction: XSCANS; program(s) used to solve structure: SIR2004 (Burla et al., 2005 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ); software used to prepare material for publication: WinGX (Farrugia, 1999 ).

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536809008198/is2398sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536809008198/is2398Isup2.hkl

checkCIF report

Comment top

The stereoselective synthesis of α-hydroxyamides (Barbaro et al., 1992; Szymanski et al., 2006) is an important area in asymmetric synthesis because these kinds of intermediates exhibit a great value as synthetic building block in the synthesis of pharmaceutical, agriculture and medicinal compounds (Sheppard et al., 2004; Chen et al., 1996). Numerous methods have been development through the last 10 years. One of the most relevant methodologies is the opening reaction of epoxyamides (Concellón et al., 2003a,b; Martín et al., 2004). In this way, we show herein the regiospecific ring opening reaction of epoxyamide derived from (S)-(-)-phenyl ethyl amine (Scheme 1). Related structures including (S)-(-)-phenyl ethyl amine with different substituents has been previously reported (Romero et al., 2005a,b).

In the present paper, we report the structure of title compound, (I), which shows a single asymmetric unit with two aromatic rings. The morpholine ring shows an almost perfect chair conformation with a puckering parameters (Cremer & Pople, 1975) (O3—C2—C1—N2—C4—C3) Q = 0.572 (4) Å, θ₂ = 3.6° (4), ϕ₂ =343° (10), q₂ = 0.026 (4) Å and q₃ = 0.571 (4) Å. In the crystal structure, the molecules are linked by O—H···O hydrogen bonds (Table 1), generating a ribbon structure along the a axis.

Related literature top

For general background, see: Barbaro et al. (1992); Szymanski et al. (2006); Sheppard et al. (2004); Chen et al. (1996); Concellón et al. (2003a,b); Martín et al. (2004). For related structures, see: Romero et al. (2005a,b). For ring conformation analysis, see: Cremer & Pople (1975).

Experimental top

The compound (I) was obtained by trans-diastereoisomeric mixture of epoxyamide in anhydrous EtOH. Then, 1.1 equivalents of morpholine were added. The reaction was stirred over night. Finally, the resultant amino alcohol mixture was separate by column chromatography (AcOEt: Petroleum Ether). The absolute configuration of (1'S, 2R, 3R)-(-)-2-hydroxy-3-morpholin-4-yl-3 -phenyl-N-(1'-phenyl-ethyl)-propionamide was established by the structure determination of a (S)-(-)-phenyl ethyl amine of known absolute configuration of starting material [C8 in compound (I)]. The H¹ NMR experiment shows only one disteromeric compound.

Computing details top

Data collection: XSCANS (Siemens, 1994); cell refinement: XSCANS (Siemens, 1994); data reduction: XSCANS (Siemens, 1994); program(s) used to solve structure: SIR2004 (Burla et al., 2005); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).

Figures top

	Fig. 1. The molecular structure of the title compound, with atom labels and 50% probability displacement ellipsoids for non-H atoms.
	Fig. 2. The packing of the title compound, showing molecules connected by O—H···O hydrogen bonds (dashed lines).

(1'S,2R,3R)-(-)-2-Hydroxy-3-morpholino-3-phenyl- N-(1'-phenylethyl)propionamide top

Crystal data top

C₂₁H₂₆N₂O₃	D_x = 1.208 Mg m⁻³
M_r = 354.44	Melting point: 431 K
Orthorhombic, P2₁2₁2₁	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2ab	Cell parameters from 30 reflections
a = 6.0010 (17) Å	θ = 3.9–23.9°
b = 15.659 (3) Å	µ = 0.08 mm⁻¹
c = 20.746 (4) Å	T = 293 K
V = 1949.5 (8) Å³	Prism, colorless
Z = 4	0.72 × 0.28 × 0.16 mm
F(000) = 760

Data collection top

Bruker P4 diffractometer	R_int = 0.055
Radiation source: fine-focus sealed tube	θ_max = 29.0°, θ_min = 1.6°
Graphite monochromator	h = −1→8
2θ/ω scans	k = −1→21
3964 measured reflections	l = −1→28
2959 independent reflections	3 standard reflections every 97 reflections
1116 reflections with I > 2σ(I)	intensity decay: 3%

Refinement top

Refinement on F²	Secondary atom site location: difference Fourier map
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F² > 2σ(F²)] = 0.054	H atoms treated by a mixture of independent and constrained refinement
wR(F²) = 0.163	w = 1/[σ²(F_o²) + (0.0711P)²] where P = (F_o² + 2F_c²)/3
S = 0.89	(Δ/σ)_max < 0.001
2959 reflections	Δρ_max = 0.24 e Å⁻³
251 parameters	Δρ_min = −0.19 e Å⁻³
0 restraints	Extinction correction: SHELXL97 (Sheldrick, 2008)
Primary atom site location: structure-invariant direct methods	Extinction coefficient: 0.008 (2)

Crystal data top

C₂₁H₂₆N₂O₃	V = 1949.5 (8) Å³
M_r = 354.44	Z = 4
Orthorhombic, P2₁2₁2₁	Mo Kα radiation
a = 6.0010 (17) Å	µ = 0.08 mm⁻¹
b = 15.659 (3) Å	T = 293 K
c = 20.746 (4) Å	0.72 × 0.28 × 0.16 mm

Data collection top

Bruker P4 diffractometer	R_int = 0.055
3964 measured reflections	3 standard reflections every 97 reflections
2959 independent reflections	intensity decay: 3%
1116 reflections with I > 2σ(I)

Refinement top

R[F² > 2σ(F²)] = 0.054	0 restraints
wR(F²) = 0.163	H atoms treated by a mixture of independent and constrained refinement
S = 0.89	Δρ_max = 0.24 e Å⁻³
2959 reflections	Δρ_min = −0.19 e Å⁻³
251 parameters

Special details top

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes.

Refinement. Refinement of F² against all reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > 2σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on all data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
O1	−0.1563 (5)	0.92034 (19)	0.75127 (13)	0.0567 (8)
N2	−0.1559 (5)	0.90373 (19)	0.60796 (14)	0.0464 (8)
O2	0.4127 (5)	0.96834 (18)	0.72379 (13)	0.0598 (8)
N1	0.2201 (6)	0.9177 (2)	0.81024 (16)	0.0516 (9)
C10	0.0914 (6)	0.8018 (2)	0.66365 (17)	0.0447 (9)
C7	0.2354 (6)	0.9439 (2)	0.74924 (19)	0.0445 (9)
O3	−0.3564 (6)	0.9556 (2)	0.48787 (14)	0.0770 (10)
C5	0.0430 (7)	0.8947 (2)	0.64872 (18)	0.0449 (9)
C6	0.0197 (6)	0.9474 (2)	0.71116 (18)	0.0434 (9)
C4	−0.2007 (7)	0.9933 (2)	0.5920 (2)	0.0554 (11)
H4A	−0.0697	1.0183	0.5721	0.066*
H4B	−0.2322	1.0248	0.6312	0.066*
C8	0.3993 (7)	0.9216 (3)	0.8565 (2)	0.0552 (11)
C15	0.3024 (8)	0.7691 (2)	0.65361 (19)	0.0535 (10)
H15	0.4145	0.8045	0.6380	0.064*
C16	0.5180 (7)	0.8364 (3)	0.86521 (19)	0.0558 (11)
C11	−0.0702 (7)	0.7484 (3)	0.6885 (2)	0.0610 (11)
H11	−0.2125	0.7695	0.6964	0.073*
C17	0.4526 (9)	0.7626 (3)	0.8349 (2)	0.0703 (13)
H17	0.3292	0.7635	0.8078	0.084*
C3	−0.3969 (8)	1.0009 (3)	0.5463 (2)	0.0676 (13)
H3A	−0.5294	0.9782	0.5669	0.081*
H3B	−0.4235	1.0607	0.5367	0.081*
C1	−0.1284 (8)	0.8570 (3)	0.54712 (19)	0.0637 (12)
H1A	−0.1097	0.7967	0.5564	0.076*
H1B	0.0055	0.8768	0.5257	0.076*
C2	−0.3229 (9)	0.8683 (3)	0.5030 (2)	0.0765 (15)
H2A	−0.2973	0.8365	0.4635	0.092*
H2B	−0.4559	0.8457	0.5233	0.092*
C13	0.1855 (9)	0.6310 (3)	0.6898 (2)	0.0699 (14)
H13	0.2158	0.5736	0.6973	0.084*
C14	0.3492 (8)	0.6836 (3)	0.6666 (2)	0.0638 (12)
H14	0.4918	0.6623	0.6594	0.077*
C21	0.7048 (9)	0.8339 (4)	0.9047 (3)	0.0896 (17)
H21	0.7533	0.8835	0.9250	0.107*
C9	0.3070 (9)	0.9542 (4)	0.9206 (2)	0.0938 (18)
H9A	0.2331	1.0078	0.9138	0.141*
H9B	0.4271	0.9618	0.9506	0.141*
H9C	0.2027	0.9135	0.9375	0.141*
C12	−0.0219 (9)	0.6627 (3)	0.7018 (3)	0.0742 (14)
H12	−0.1316	0.6274	0.7189	0.089*
C18	0.5674 (12)	0.6867 (3)	0.8440 (3)	0.0958 (18)
H18	0.5207	0.6370	0.8236	0.115*
C19	0.7512 (13)	0.6857 (5)	0.8837 (4)	0.119 (2)
H19	0.8297	0.6351	0.8899	0.143*
C20	0.8184 (12)	0.7586 (5)	0.9141 (3)	0.122 (2)
H20	0.9418	0.7574	0.9412	0.147*
H1O	−0.307 (14)	0.929 (5)	0.735 (4)	0.184*
H1N	0.059 (12)	0.906 (4)	0.819 (3)	0.147*
H5	0.180 (12)	0.915 (4)	0.627 (3)	0.147*
H6	−0.004 (11)	1.009 (4)	0.697 (3)	0.147*
H8	0.535 (12)	0.960 (4)	0.839 (3)	0.147*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
O1	0.0370 (14)	0.0800 (19)	0.0531 (15)	0.0034 (16)	0.0045 (14)	0.0008 (15)
N2	0.0476 (19)	0.0465 (17)	0.0450 (16)	0.0034 (17)	−0.0023 (16)	0.0024 (14)
O2	0.0429 (17)	0.0697 (18)	0.0668 (18)	−0.0070 (15)	0.0011 (15)	0.0061 (15)
N1	0.0388 (18)	0.065 (2)	0.0507 (19)	0.0006 (18)	−0.0067 (17)	−0.0002 (17)
C10	0.041 (2)	0.045 (2)	0.049 (2)	0.003 (2)	0.0017 (19)	0.0029 (17)
C7	0.038 (2)	0.044 (2)	0.051 (2)	0.0032 (18)	−0.001 (2)	−0.0001 (19)
O3	0.091 (3)	0.086 (2)	0.0543 (17)	0.013 (2)	−0.0085 (19)	0.0103 (16)
C5	0.041 (2)	0.046 (2)	0.048 (2)	0.0057 (19)	0.0005 (19)	0.0005 (17)
C6	0.034 (2)	0.047 (2)	0.049 (2)	0.0020 (19)	0.0026 (18)	0.0012 (18)
C4	0.058 (3)	0.050 (2)	0.058 (2)	0.007 (2)	−0.009 (2)	0.008 (2)
C8	0.047 (2)	0.064 (3)	0.055 (2)	0.008 (2)	−0.011 (2)	−0.009 (2)
C15	0.050 (2)	0.052 (2)	0.058 (2)	0.002 (2)	0.005 (2)	−0.001 (2)
C16	0.048 (3)	0.067 (3)	0.053 (2)	0.005 (2)	0.002 (2)	0.003 (2)
C11	0.048 (3)	0.050 (2)	0.085 (3)	0.002 (2)	0.008 (3)	0.009 (2)
C17	0.069 (3)	0.068 (3)	0.074 (3)	0.007 (3)	0.004 (3)	0.008 (3)
C3	0.073 (3)	0.072 (3)	0.058 (2)	0.016 (3)	−0.003 (3)	0.005 (2)
C1	0.080 (3)	0.061 (2)	0.051 (2)	0.007 (3)	−0.003 (3)	−0.010 (2)
C2	0.083 (4)	0.088 (3)	0.058 (3)	0.004 (3)	−0.016 (3)	−0.010 (3)
C13	0.072 (3)	0.047 (2)	0.090 (3)	0.006 (3)	−0.002 (3)	0.008 (2)
C14	0.057 (3)	0.051 (2)	0.084 (3)	0.016 (2)	0.004 (3)	−0.004 (2)
C21	0.075 (4)	0.098 (4)	0.096 (4)	0.018 (4)	−0.030 (3)	0.003 (3)
C9	0.080 (3)	0.134 (5)	0.068 (3)	0.034 (4)	−0.018 (3)	−0.042 (3)
C12	0.063 (3)	0.052 (3)	0.107 (4)	−0.003 (2)	0.003 (3)	0.018 (3)
C18	0.108 (5)	0.063 (3)	0.116 (4)	0.014 (4)	0.016 (4)	0.011 (3)
C19	0.114 (6)	0.094 (5)	0.149 (6)	0.045 (5)	−0.001 (5)	0.025 (5)
C20	0.104 (5)	0.125 (5)	0.137 (6)	0.035 (5)	−0.042 (5)	0.025 (5)

Geometric parameters (Å, º) top

O1—C6	1.410 (5)	C16—C21	1.389 (6)
O1—H1O	0.98 (8)	C11—C12	1.401 (6)
N2—C4	1.466 (5)	C11—H11	0.9300
N2—C1	1.468 (5)	C17—C18	1.387 (7)
N2—C5	1.470 (5)	C17—H17	0.9300
O2—C7	1.248 (4)	C3—H3A	0.9700
N1—C7	1.333 (5)	C3—H3B	0.9700
N1—C8	1.443 (5)	C1—C2	1.494 (7)
N1—H1N	1.00 (7)	C1—H1A	0.9700
C10—C11	1.380 (5)	C1—H1B	0.9700
C10—C15	1.382 (6)	C2—H2A	0.9700
C10—C5	1.514 (5)	C2—H2B	0.9700
C7—C6	1.517 (5)	C13—C12	1.363 (7)
O3—C2	1.416 (5)	C13—C14	1.370 (6)
O3—C3	1.426 (5)	C13—H13	0.9300
C5—C6	1.542 (5)	C14—H14	0.9300
C5—H5	0.99 (7)	C21—C20	1.376 (8)
C6—H6	1.02 (6)	C21—H21	0.9300
C4—C3	1.516 (6)	C9—H9A	0.9600
C4—H4A	0.9700	C9—H9B	0.9600
C4—H4B	0.9700	C9—H9C	0.9600
C8—C16	1.523 (6)	C12—H12	0.9300
C8—C9	1.528 (6)	C18—C19	1.376 (9)
C8—H8	1.08 (7)	C18—H18	0.9300
C15—C14	1.393 (5)	C19—C20	1.365 (9)
C15—H15	0.9300	C19—H19	0.9300
C16—C17	1.373 (6)	C20—H20	0.9300

C6—O1—H1O	116 (4)	C16—C17—H17	119.5
C4—N2—C1	107.6 (3)	C18—C17—H17	119.5
C4—N2—C5	111.8 (3)	O3—C3—C4	111.1 (4)
C1—N2—C5	110.8 (3)	O3—C3—H3A	109.4
C7—N1—C8	124.5 (4)	C4—C3—H3A	109.4
C7—N1—H1N	107 (4)	O3—C3—H3B	109.4
C8—N1—H1N	127 (4)	C4—C3—H3B	109.4
C11—C10—C15	118.4 (4)	H3A—C3—H3B	108.0
C11—C10—C5	121.5 (4)	N2—C1—C2	112.3 (4)
C15—C10—C5	120.1 (4)	N2—C1—H1A	109.1
O2—C7—N1	123.7 (4)	C2—C1—H1A	109.1
O2—C7—C6	119.7 (3)	N2—C1—H1B	109.1
N1—C7—C6	116.5 (3)	C2—C1—H1B	109.1
C2—O3—C3	108.5 (3)	H1A—C1—H1B	107.9
N2—C5—C10	111.5 (3)	O3—C2—C1	111.2 (4)
N2—C5—C6	111.0 (3)	O3—C2—H2A	109.4
C10—C5—C6	111.1 (3)	C1—C2—H2A	109.4
N2—C5—H5	112 (4)	O3—C2—H2B	109.4
C10—C5—H5	104 (4)	C1—C2—H2B	109.4
C6—C5—H5	107 (4)	H2A—C2—H2B	108.0
O1—C6—C7	108.7 (3)	C12—C13—C14	120.0 (4)
O1—C6—C5	113.8 (3)	C12—C13—H13	120.0
C7—C6—C5	109.9 (3)	C14—C13—H13	120.0
O1—C6—H6	110 (4)	C13—C14—C15	120.1 (4)
C7—C6—H6	108 (4)	C13—C14—H14	120.0
C5—C6—H6	106 (4)	C15—C14—H14	120.0
N2—C4—C3	111.0 (3)	C20—C21—C16	120.5 (6)
N2—C4—H4A	109.4	C20—C21—H21	119.8
C3—C4—H4A	109.4	C16—C21—H21	119.8
N2—C4—H4B	109.4	C8—C9—H9A	109.5
C3—C4—H4B	109.4	C8—C9—H9B	109.5
H4A—C4—H4B	108.0	H9A—C9—H9B	109.5
N1—C8—C16	113.0 (3)	C8—C9—H9C	109.5
N1—C8—C9	108.8 (3)	H9A—C9—H9C	109.5
C16—C8—C9	111.1 (4)	H9B—C9—H9C	109.5
N1—C8—H8	112 (3)	C13—C12—C11	120.1 (5)
C16—C8—H8	100 (3)	C13—C12—H12	119.9
C9—C8—H8	112 (3)	C11—C12—H12	119.9
C10—C15—C14	120.8 (4)	C19—C18—C17	119.4 (6)
C10—C15—H15	119.6	C19—C18—H18	120.3
C14—C15—H15	119.6	C17—C18—H18	120.3
C17—C16—C21	118.5 (5)	C20—C19—C18	120.2 (6)
C17—C16—C8	123.3 (4)	C20—C19—H19	119.9
C21—C16—C8	118.1 (4)	C18—C19—H19	119.9
C10—C11—C12	120.6 (4)	C19—C20—C21	120.4 (6)
C10—C11—H11	119.7	C19—C20—H20	119.8
C12—C11—H11	119.7	C21—C20—H20	119.8
C16—C17—C18	121.1 (5)

C8—N1—C7—O2	6.1 (6)	N1—C8—C16—C17	−3.5 (6)
C8—N1—C7—C6	−170.8 (3)	C9—C8—C16—C17	119.1 (5)
C4—N2—C5—C10	−178.6 (3)	N1—C8—C16—C21	175.0 (4)
C1—N2—C5—C10	−58.5 (4)	C9—C8—C16—C21	−62.5 (5)
C4—N2—C5—C6	57.0 (4)	C15—C10—C11—C12	−1.3 (6)
C1—N2—C5—C6	177.1 (3)	C5—C10—C11—C12	179.9 (4)
C11—C10—C5—N2	−51.9 (5)	C21—C16—C17—C18	1.0 (7)
C15—C10—C5—N2	129.3 (4)	C8—C16—C17—C18	179.5 (4)
C11—C10—C5—C6	72.4 (5)	C2—O3—C3—C4	60.3 (5)
C15—C10—C5—C6	−106.4 (4)	N2—C4—C3—O3	−59.3 (5)
O2—C7—C6—O1	−177.3 (3)	C4—N2—C1—C2	−54.6 (5)
N1—C7—C6—O1	−0.2 (4)	C5—N2—C1—C2	−177.1 (4)
O2—C7—C6—C5	57.6 (5)	C3—O3—C2—C1	−59.9 (5)
N1—C7—C6—C5	−125.4 (3)	N2—C1—C2—O3	59.0 (5)
N2—C5—C6—O1	63.3 (4)	C12—C13—C14—C15	−1.7 (7)
C10—C5—C6—O1	−61.3 (4)	C10—C15—C14—C13	−0.3 (7)
N2—C5—C6—C7	−174.5 (3)	C17—C16—C21—C20	−1.3 (8)
C10—C5—C6—C7	60.9 (4)	C8—C16—C21—C20	−179.8 (6)
C1—N2—C4—C3	54.3 (5)	C14—C13—C12—C11	2.1 (8)
C5—N2—C4—C3	176.2 (3)	C10—C11—C12—C13	−0.6 (7)
C7—N1—C8—C16	−99.7 (5)	C16—C17—C18—C19	−0.6 (8)
C7—N1—C8—C9	136.4 (4)	C17—C18—C19—C20	0.4 (10)
C11—C10—C15—C14	1.7 (6)	C18—C19—C20—C21	−0.7 (11)
C5—C10—C15—C14	−179.4 (4)	C16—C21—C20—C19	1.1 (10)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1N···O1	1.00 (7)	1.92 (7)	2.569 (5)	120 (5)
O1—H1O···O2ⁱ	0.98 (8)	1.80 (8)	2.753 (4)	163 (7)

Symmetry code: (i) x−1, y, z.

Experimental details

Crystal data
Chemical formula	C₂₁H₂₆N₂O₃
M_r	354.44
Crystal system, space group	Orthorhombic, P2₁2₁2₁
Temperature (K)	293
a, b, c (Å)	6.0010 (17), 15.659 (3), 20.746 (4)
V (Å³)	1949.5 (8)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	0.08
Crystal size (mm)	0.72 × 0.28 × 0.16

Data collection
Diffractometer	Bruker P4 diffractometer
Absorption correction	–
No. of measured, independent and observed [I > 2σ(I)] reflections	3964, 2959, 1116
R_int	0.055
(sin θ/λ)_max (Å⁻¹)	0.682

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.054, 0.163, 0.89
No. of reflections	2959
No. of parameters	251
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	0.24, −0.19

Computer programs: XSCANS (Siemens, 1994), SIR2004 (Burla et al., 2005), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1N···O1	1.00 (7)	1.92 (7)	2.569 (5)	120 (5)
O1—H1O···O2ⁱ	0.98 (8)	1.80 (8)	2.753 (4)	163 (7)

Symmetry code: (i) x−1, y, z.

Acknowledgements

We acknowledge financial support under scholarship DMAS No. 169011 and CONACyT project No. 83185. Special thanks go to Dr Marcos Flores (USAI-FQ-UNAM) for useful comments.

References

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organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

(1′S,2R,3R)-(−)-2-Hydr­­oxy-3-morpholino-3-phenyl-N-(1′-phenyl­ethyl)propion­amide

Related literature

Experimental

Crystal data

Data collection

Refinement

Supporting information

Acknowledgements

References

organic compounds

(1′S,2R,3R)-(−)-2-Hydroxy-3-morpholino-3-phenyl-N-(1′-phenylethyl)propionamide